Operating system: Linux-5.4.43-x86_64-Intel-R-_Core-TM-_i7-7500U_CPU_@_2.70GHz-with-slackware-14.2 64 Bits
Graphics card: Mesa Intel(R) HD Graphics 620 (KBL GT2) Intel 4.6 (Core Profile) Mesa 20.1.0
Broken: version: 2.91.0 Alpha, branch: master, hash: rBf470a02afaea, commit date: 2020-09-20 05:59
Worked: version: 2.91.0 Alpha, branch: master, hash: rB66078594d130
Short description of error
When drawing images with the python gpu module, they will no longer draw on top of the region's contents or of other python rendering.
This problem happens in the Image Editor, but not the Sequence Editor.
(2 square images and a circle are drawn with Python, 'POST_PIXEL' in the Image Editor, which shows a rectangular image)
(the circle, drawn first, shows on top. The Image Editor's image also shows on top)
Exact steps for others to reproduce the error
See the attached .blend file.