Auto Exposure Basic disables histogram min/max controls.
Working as expected in 4.19 CL# 4033788 and 4.20 CL# 4369336
Found in 4.21 Preview 1 CL# 4435822 and 4.22 CL# 4448303
This is a regression
The Histogram Min/Max (and/or EV100) affect the visualizer but are disabled unless using Auto Exposure Histogram for Metering Mode
Histogram Min/Max should be editable using Auto Exposure Basic
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-65102 in the post.