I deleted my config and I reset everything. I was able to fix HDR in Arkham City again. I’m not sure which tweak did it but here’s what I changed:
Display:
Windowed mode, force override, borderless
Window Management:
Borderless
Fullscreen borderless upscale
Force always on-top
Input/output behaviour:
Continue rendering
SpecialK.ini (4.8 KB)