Authoring MFE transparency issues

Hi everyone, just wanted to find out if anyone else is having issues with the Authoring MFE’s menus/windows specifically with transparency? Not sure if I’ve done something wrong or its a bug in the MFE, but it seems like all menus and windows have 100% transparency causing a lot of content overlap, quite difficult to use the MFE depending what I’m looking at. Didn’t notice any other reports of this so not sure if I broke something…
Tutor version 21.0.1
Authoring MFE currently on master branch (same on Ulmo branch though)

Some (non-exhaustive) examples:

  1. top level menus:
  2. unit/section editing:
  3. unit editor (video almost looks like it’s above the editor window)
  4. course overview html editor:

its a browser issue apparently, my mistake