Multiple errors when opened the plugin in Godot 4.1 (dev) and 4.02

[me2beats]

Hello, thanks for useful plugin!
I tried to run it with Godot 4.1 dev 4 and got thousands of errors
It seems something is changed in godot API

[me2beats]

I got errors on 4.02 as well
I try to open current master branch
the os is windows

[me2beats]

I've tried 1.01 release - the same problem
the errors are like

but, the second time I run the project, it works in 4.02

[blackears]

I think this is an issue with the Godot editor. In a nutshell, Godot isn't very good at handling when classes change their name or are moved to different locations. Closing and opening a project twice will often fix this. But I've had one time where even that didn't fix it.

Let me know if closing/reopening Godot a few times fixes the problem. If not, please post the error messages you are getting.

I've opened an issue about this with the Godot devs. hopefully it gets fixed soon.
godotengine/godot#76380 (comment)