Visible corruptions on displays when desktop width is more than 16k pixels.
mutter 42.9
Bug summary
Corruption on all connected screens when all displays are setup as extended and are positioned in a single line.
Steps to reproduce
What happened
Corruption in case when there are 5 displays setup in line is visible as black stripe on all connected montiors, covered 4th-5th part of the display. On such "black stripe" I can't put any window, but I can move there with mouse pointer. Also when movig window around I can see leftovers of window dragged.
What did you expect to happen
I would expect all displays proper filled with a desktop background, no black stripes, all part of the screen should be accessible with windows dragging, and no window leftover on the displays while dragging. When move one of attached monitors out of the row (i.e. move it down) then the issue stops reproducing.