**System Information**
Operating system: Linux-5.4.0-7642-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: Quadro RTX 4000 with Max-Q Design/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.100
**Blender Version**
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-21 08:49, hash: `rBd72b5785eb02`
Worked: 2.91.0 Alpha around September 15th
**Short description of error**
The improvement done recently as part of the Image Editor refactor, that shows correct alpha values is no longer working.
{F8905803, size=full}
I made [a video about it on September 15th](https://youtu.be/mQqV77PaOVs?t=88), compiled that same day and it worked fine. But as of recently it no longer works.
**Exact steps for others to reproduce the error**
The easiest way to test is with EEVEE bloom, attached this simple file I used in the demo video:
{F8905784}