@ijkfraser this is a known issue in SketchUp 2023. Hopefully it will be fixed in the next release.

@ijkfraser said:

Return to the previous scene by clicking the previous scene tab and BUGSPLAT. Works every time and took me a long time to realise the problem.

What version of SketchUp are you using?

@ijkfraser said:

I have upgraded to Windows 11 and use dual monitors.
I am using the second screen to display my 'Trays' 3 of them.
On loading a drawing the trays don't fully display and some of the dialogs in the tray are shown blacked out. See attachment.
I can rectify this each time I load a file by deleting and re-installing the tray.
Ian Fraser [color=#fffff]geometry dash meltdown[/color]

I got the same problem

@dave r said:

Each version of SketchUp installs as a separate program. It doesn't overwrite the previous version. When I migrate to a new version I make a screen shot of the previous version showing my toolbar arrangement. Then I import that image into the new one to use as a reference for placing my toolbars. Makes it easier to see what goes where. I also use it as a time to do some cleaning to get rid of tools I don't really need on my toolbars.

I understand and that is what I do. However even though I am fairly proficient with SU Prro it really puts me off updating my software.
Needs a rethink.