
It accepts keyboard input, and clears its contents (but remains open) when I press Alt-F4 again. But I can't imagine what it's doing. It doesn't seem connected with any extensions or control panels, because it happens when
There seems to be no way out of this except to restart BasiliskII (with Shift-Alt-F4, apparently). And the window opens with Alt-F4 even if I start with no extensions at all.
I can't reproduce this in BasiliskII for macOS, and I don't see it in older builds. I can't find anything the source code that might be involved, but probably I haven't looked hard enough.
Does anyone recognize this?