Usage of the Real-Time API throws _debouncedCallUserAPI error

[lorenzrabs]

The fetch call is functioning.
But its throwing this error:

Uncaught (in promise) TypeError: this._debouncedCallUserAPI is not a function
at kd.callUserAPI (runtime.js:3147:4748)
at kd.prefetch (runtime.js:3147:4701)
at new kd (runtime.js:3147:4304)
at ou.addUserAPI (runtime.js:5731:21977)
at ou.reset (runtime.js:5731:9497)
at new ou (runtime.js:5731:9131)
at new E1 (runtime.js:8478:18231)
at kF.start (runtime.js:8478:26560)
at async kF.load (runtime.js:8478:25942)
at async n (react-spline.js:62:17)

Again i realized that the @splinetool/runtime version exported from the Spline Editor is not even close to the current version..

Dependencies:
"@splinetool/react-spline": "4.0.0",
"@splinetool/runtime": "^1.9.59",
"next": "^15",
"react": "^19.0.0",
"react-dom": "^19.0.0",