Beautifier - broken Clang Format settings

I observe some funky stuff after upgrading to QtCreator 9.0.0 in `Beautifier -> Clang Format settings` page.

Normally I use my own customized style which is selected in the `Options` page:

I can select it and the format files as usual. But as soon as I open `Edit -> Preferences` menu a second time it seems to be switching back to the first, predefined style. What is especially weird is that after coming back to the the `Options` section selection is a little messed up:

Indicating that both are selected. System information dump from Creator attached to the issue.