"No video was saved before this recording stopped" in cap but the project files are right there

[Planet of the]

after the latest cap update the old studio projects in the recordings tab wont open in the editor anymore, all of them land on

This recording could not be opened
No video was saved before this recording stopped, so there is nothing to recover.

weird part is the .cap folders are still sitting in appdata untouched. is rolling back safe or does the new version rewrite them