This bug was fixed in the package gtk4 - 4.10.3+ds-0ubuntu1
---
gtk4 (4.10.3+ds-0ubuntu1) lunar; urgency=medium
* New upstream release (LP: #2020708)
* Cherry-pick patch to fix black rectangles seen with mutter 44.1
(LP: #2020674)
-- Jeremy Bícha Wed, 24 May 2023 16:41:45
** Also affects: gtk4 (Ubuntu Lunar)
Importance: Undecided
Status: New
** Changed in: gtk4 (Ubuntu Lunar)
Status: New => In Progress
** Changed in: gtk4 (Ubuntu Lunar)
Importance: Undecided => High
** Changed in: gtk4 (Ubuntu Lunar)
Assignee: (unassigned) => Jeremy Bícha