I noticed this bug: I had the “dim at sunset” featured enabled and I decided to disable it. Note: it is currently after sunset now, so the display was in it’s dim mode when I toggled to disabled it. The display stayed dim though, even though the feature was off. Restarting the app didn’t jump start it but what did finally get it to come back to full brightness was to adjust the “peak brightness” level. Just to any number then back to where I had it and ta-da, it was no longer dimmed!