10 hours ago
I have seen a similar issue in the past, probably caused by some special status of the first canvas window. My personal workaround at the time was to use View > New view in that first window to make Gimp open a second window on the image, and then close the initial one.
But your post made me re-check the problem, and I can't reproduce it on my current Gimp version (3.1.5)
But your post made me re-check the problem, and I can't reproduce it on my current Gimp version (3.1.5)