"Enter Time Machine" Display Oddness

[Buadhai]

This started happening with Big Sur but has continued after I updated to Monterey yesterday. If I "Enter Time Machine" I get this massive black box covering most of the screen. If I increase screen resolution to something very high, I can see part of the Finder window, but not enough to be useful. I can't take a screenshot when this happens, so I had to take a photo of the screen. Any idea what's going on here? This on a 2017 21" iMac now running Monterey.

 

[Buadhai]

I should add that I have two desktops set up. If I move a Finder window to Desktop 2, Enter Time Machine works normally. How odd.

 

[BrianBaughn]

The same thing happens when I have a second monitor connected and extending my desktop. I have to switch the second desktop to mirror mode to get rid of it.

It's a thing.

 

[Buadhai]

The same thing happens when I have a second monitor connected and extending my desktop. I have to switch the second desktop to mirror mode to get rid of it.

It's a thing.

OK, got it.

 

[Artiste212]

OK, got it.

Same issue, same workaround!

 

[kautame]

happens when I have a second monitor connected and extending my desktop. I have to switch the second desktop to mirror mode to get rid of it.

You don't need to swith to mirror mode. Just go to "Desktop & Dock" pane in "System Preferences" and UNCHECK the box "Displays have separate Spaces" (it's the last one at the bottom). I'm talking about Sonoma, here.
If that option is not there, on an older MacOS you can find it under the "Mission Control" preferences:

time machine screen has black box - Apple Community

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