[Bug] backup schedules are shifted by one day

[jochen-01]

Guidelines

• I have read the FAQ and it doesn't cover the issue.
• I have searched the issue tracker for open and closed issues that are similar to the feature request I want to file, without success.
• I'm on the latest version.
• I'm not using a test build (alpha/beta/release-candidate).
• This issue contains only one bug.

Describe the bug

Usually I want my backup running on specific week days. I selected the backup intervals to make sure that it runs, eg., on sunday night. If I open neo backup 2 days later all schedules have been shifted to, in this example, monday.

Expected Behavior

My expectation is, that the backup takes place x days (schedule settings) after the former backup doone with this schedule setting.
I am tired now to make my backups by fortune rather by plans. I'll go back to 8.3.6, the last version which works here without severe issues.

Neo Backup's Version

8.3.16

Installation Source

Official F-Droid repo

Last Known Working Version

8.3.6

Relevant information

• Device: Fairfone 4
• Android Version: 11
• ROM: (AOSP, CalyxOS, MIUI, GOS...) factory ROM