After updating from 8.2.1 to 8.3.3, the Close File shortcut no longer works properly

I’d been avoiding updating from 8.2.1 because of the bug reports here, but decided to roll the dice the other day. So my current/new version is 8.3.3

I have always used the default Ctrl + W shortcut to close the image, and it always immediately generated the usual dialog box asking for confirmation. However, since updating to 8.3.3 that shortcut no longer works ‘on the first try.’ Nothing happens when using Ctrl + W (no dialog box asking to confirm the file closure). It requires a second execution of that shortcut in order to activate. This is annoying.

Windows 11 PC. Up to date. Ctrl + W works immediately in all of my other image editors (Luminar Neo, Radiant Photo, and Paint.net) so it’s not Windows causing hiccup.

Also, I always only have one image open at a time when using Gigapixel.