diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d6f4bf45..193b3de9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -3,10 +3,11 @@ name: Build and test
 on: [push, pull_request]
 
 env:
-  ISPYB_DATABASE_SCHEMA: 4.8.0
+  ISPYB_DATABASE_SCHEMA: 4.11.0
   # Installs from GitHub
   # Versions: https://github.com/DiamondLightSource/ispyb-database/tags
   # Previous version(s):
+  # 4.8.0
   # 4.2.1 # released 2024-08-19
   # 4.1.0 # released 2024-03-26
 
diff --git a/src/murfey/server/api/session_shared.py b/src/murfey/server/api/session_shared.py
index 644b9b35..3a9955fa 100644
--- a/src/murfey/server/api/session_shared.py
+++ b/src/murfey/server/api/session_shared.py
@@ -1,4 +1,5 @@
 import logging
+import os
 from pathlib import Path
 from typing import Dict, List
 
@@ -136,11 +137,48 @@ def get_foil_hole(session_id: int, fh_name: int, db) -> Dict[str, int]:
     return {f[1].tag: f[0].id for f in foil_holes}
 
 
-def find_upstream_visits(session_id: int, db: SQLModelSession):
+def find_upstream_visits(session_id: int, db: SQLModelSession, max_depth: int = 2):
     """
     Returns a nested dictionary, in which visits and the full paths to their directories
     are further grouped by instrument name.
     """
+
+    def _recursive_search(
+        dirpath: str | Path,
+        search_string: str,
+        partial_match: bool = True,
+        max_depth: int = 1,
+        result: dict[str, Path] | None = None,
+    ):
+        # If no dictionary was passed in, create a new dictionary
+        if result is None:
+            result = {}
+        # Stop recursing for this route once max depth hits 0
+        if max_depth == 0:
+            return result
+
+        # Walk through the directories
+        for entry in os.scandir(dirpath):
+            if entry.is_dir():
+                # Update dictionary with match and stop recursing for this route
+                if (
+                    search_string in entry.name
+                    if partial_match
+                    else search_string == entry.name
+                ):
+                    if result is not None:  # MyPy needs this 'is not None' check
+                        result[entry.name] = Path(entry.path)
+                else:
+                    # Continue searching down this route until max depth is reached
+                    result = _recursive_search(
+                        dirpath=entry.path,
+                        search_string=search_string,
+                        partial_match=partial_match,
+                        max_depth=max_depth - 1,
+                        result=result,
+                    )
+        return result
+
     murfey_session = db.exec(
         select(MurfeySession).where(MurfeySession.id == session_id)
     ).one()
@@ -155,12 +193,13 @@ def find_upstream_visits(session_id: int, db: SQLModelSession):
         upstream_instrument,
         upstream_data_dir,
     ) in machine_config.upstream_data_directories.items():
-        # Looks for visit name in file path
-        current_upstream_visits = {}
-        for visit_path in Path(upstream_data_dir).glob(f"{visit_name.split('-')[0]}-*"):
-            if visit_path.is_dir():
-                current_upstream_visits[visit_path.name] = visit_path
-        upstream_visits[upstream_instrument] = current_upstream_visits
+        # Recursively look for matching visit names under current directory
+        upstream_visits[upstream_instrument] = _recursive_search(
+            dirpath=upstream_data_dir,
+            search_string=f"{visit_name.split('-')[0]}-",
+            partial_match=True,
+            max_depth=max_depth,
+        )
     return upstream_visits
 
 
diff --git a/src/murfey/server/feedback.py b/src/murfey/server/feedback.py
index 45c9e634..c95f1e1b 100644
--- a/src/murfey/server/feedback.py
+++ b/src/murfey/server/feedback.py
@@ -2160,7 +2160,7 @@ def feedback_callback(header: dict, message: dict, _db=murfey_db) -> None:
                 murfey_db=_db,
             )
             if murfey.server._transport_object:
-                if result.get("success", False):
+                if result.get("success"):
                     murfey.server._transport_object.transport.ack(header)
                 else:
                     # Send it directly to DLQ without trying to rerun it
diff --git a/src/murfey/workflows/register_data_collection.py b/src/murfey/workflows/register_data_collection.py
index dbf1f53c..bedaf63d 100644
--- a/src/murfey/workflows/register_data_collection.py
+++ b/src/murfey/workflows/register_data_collection.py
@@ -1,4 +1,5 @@
 import logging
+import time
 
 import ispyb.sqlalchemy._auto_db_schema as ISPyBDB
 from sqlmodel import select
@@ -37,6 +38,7 @@ def run(message: dict, murfey_db: SQLModelSession) -> dict[str, bool]:
         dcgid = dcg[0].id
         # flush_data_collections(message["source"], murfey_db)
     else:
+        time.sleep(2)
         logger.warning(
             "No data collection group ID was found for image directory "
             f"{sanitise(message['image_directory'])} and source "
@@ -82,6 +84,14 @@ def run(message: dict, murfey_db: SQLModelSession) -> dict[str, bool]:
                     else ""
                 ),
             ).get("return_value", None)
+            if dcid is None:
+                time.sleep(2)
+                logger.error(
+                    "Failed to register the following data collection: \n"
+                    f"{message} \n"
+                    "Requeueing message"
+                )
+                return {"success": False, "requeue": True}
             murfey_dc = MurfeyDB.DataCollection(
                 id=dcid,
                 tag=message.get("tag"),
@@ -89,14 +99,5 @@ def run(message: dict, murfey_db: SQLModelSession) -> dict[str, bool]:
             )
         murfey_db.add(murfey_dc)
         murfey_db.commit()
-        dcid = murfey_dc.id
         murfey_db.close()
-
-    if dcid is None:
-        logger.error(
-            "Failed to register the following data collection: \n"
-            f"{message} \n"
-            "Requeueing message"
-        )
-        return {"success": False, "requeue": True}
     return {"success": True}
diff --git a/src/murfey/workflows/register_data_collection_group.py b/src/murfey/workflows/register_data_collection_group.py
index d887bfd4..a225936f 100644
--- a/src/murfey/workflows/register_data_collection_group.py
+++ b/src/murfey/workflows/register_data_collection_group.py
@@ -52,6 +52,15 @@ def run(message: dict, murfey_db: SQLModelSession) -> dict[str, bool]:
                 "return_value", None
             )
 
+            if dcgid is None:
+                time.sleep(2)
+                logger.error(
+                    "Failed to register the following data collection group: \n"
+                    f"{message} \n"
+                    "Requeuing message"
+                )
+                return {"success": False, "requeue": True}
+
             atlas_record = ISPyBDB.Atlas(
                 dataCollectionGroupId=dcgid,
                 atlasImage=message.get("atlas", ""),
@@ -75,15 +84,6 @@ def run(message: dict, murfey_db: SQLModelSession) -> dict[str, bool]:
         murfey_db.commit()
         murfey_db.close()
 
-    if dcgid is None:
-        time.sleep(2)
-        logger.error(
-            "Failed to register the following data collection group: \n"
-            f"{message} \n"
-            "Requeuing message"
-        )
-        return {"success": False, "requeue": True}
-
     if dcg_hooks := entry_points(group="murfey.hooks", name="data_collection_group"):
         try:
             for hook in dcg_hooks:
diff --git a/src/murfey/workflows/register_processing_job.py b/src/murfey/workflows/register_processing_job.py
index 4378453c..1bb2d5f5 100644
--- a/src/murfey/workflows/register_processing_job.py
+++ b/src/murfey/workflows/register_processing_job.py
@@ -63,6 +63,8 @@ def run(message: dict, murfey_db: SQLModelSession):
                 pid = _transport_object.do_create_ispyb_job(record).get(
                     "return_value", None
                 )
+            if pid is None:
+                return {"success": False, "requeue": True}
             murfey_pj = MurfeyDB.ProcessingJob(
                 id=pid, recipe=message["recipe"], dc_id=_dcid
             )
@@ -71,9 +73,6 @@ def run(message: dict, murfey_db: SQLModelSession):
         pid = murfey_pj.id
         murfey_db.close()
 
-    if pid is None:
-        return {"success": False, "requeue": True}
-
     # Update Prometheus counter for preprocessed movies
     prom.preprocessed_movies.labels(processing_job=pid)
 
diff --git a/tests/server/api/test_session_shared.py b/tests/server/api/test_session_shared.py
index c0f4c109..67db321d 100644
--- a/tests/server/api/test_session_shared.py
+++ b/tests/server/api/test_session_shared.py
@@ -9,10 +9,11 @@
 from tests.conftest import ExampleVisit
 
 
+@pytest.mark.parametrize("recurse", (True, False))
 def test_find_upstream_visits(
     mocker: MockerFixture,
     tmp_path: Path,
-    # murfey_db_session,
+    recurse: bool,
 ):
     # Get the visit, instrument name, and session ID
     visit_name_root = f"{ExampleVisit.proposal_code}{ExampleVisit.proposal_number}"
@@ -40,7 +41,10 @@ def test_find_upstream_visits(
             # Only directories should be picked up
             upstream_visit.mkdir(parents=True, exist_ok=True)
             upstream_visits[upstream_instrument] = {upstream_visit.stem: upstream_visit}
-            upstream_data_dirs[upstream_instrument] = upstream_visit.parent
+            # Check that the function can cope with recursive searching
+            upstream_data_dirs[upstream_instrument] = (
+                upstream_visit.parent.parent if recurse else upstream_visit.parent
+            )
         else:
             upstream_visit.parent.mkdir(parents=True, exist_ok=True)
             upstream_visit.touch(exist_ok=True)
diff --git a/tests/workflows/test_register_data_collection.py b/tests/workflows/test_register_data_collection.py
index 49be9586..88aec006 100644
--- a/tests/workflows/test_register_data_collection.py
+++ b/tests/workflows/test_register_data_collection.py
@@ -99,6 +99,6 @@ def test_run(
                     assert result == {"success": False, "requeue": True}
             else:
                 mock_transport_object.do_insert_data_collection.assert_not_called()
-                assert result == {"success": False, "requeue": True}
+                assert result == {"success": True}
         else:
             assert result == {"success": True}
diff --git a/tests/workflows/test_register_data_collection_group.py b/tests/workflows/test_register_data_collection_group.py
index 7447dc22..3324dec9 100644
--- a/tests/workflows/test_register_data_collection_group.py
+++ b/tests/workflows/test_register_data_collection_group.py
@@ -77,10 +77,10 @@ def test_run(
     else:
         if ispyb_session_id is not None:
             mock_transport_object.do_insert_data_collection_group.assert_called_once()
-            mock_transport_object.do_insert_atlas.assert_called_once()
             if insert_dcg is not None:
+                mock_transport_object.do_insert_atlas.assert_called_once()
                 assert result == {"success": True}
             else:
                 assert result == {"success": False, "requeue": True}
         else:
-            assert result == {"success": False, "requeue": True}
+            assert result == {"success": True}
diff --git a/tests/workflows/test_processing_job.py b/tests/workflows/test_register_processing_job.py
similarity index 98%
rename from tests/workflows/test_processing_job.py
rename to tests/workflows/test_register_processing_job.py
index 85562d93..350989a9 100644
--- a/tests/workflows/test_processing_job.py
+++ b/tests/workflows/test_register_processing_job.py
@@ -104,6 +104,6 @@ def test_run(
                 else:
                     assert result == {"success": False, "requeue": True}
             else:
-                assert result == {"success": False, "requeue": True}
+                assert result == {"success": True}
     else:
         assert result == {"success": False, "requeue": True}