Similar here. None of the fixes published resolve the issue for us. For now have reverted back to the Stable Channel for the Project having the issues. Aside from Autocomplete the Beta Channel all seems to run fine otherwise.
This is the one that installs when the Project is switched over to the Beta Channel and files are updated. I’ve checked the version of App Connect that is running and it is the latest build:
OK, that seems to have resolved the errors but have a white dot now appearing below the input upon mouse click, which seems to be a CSS issue (what would be the top left of the results area).