I downloaded and dirty flashed the new build (same date on it) with Stormbreaker-R1-NEWVIB-OnePlus5-T since it gave me better battery on the previous build. Not sure what problems you fixed since I did not find any before
I restored my initial build after clean flash and it behaves the same way, when using Night mode the camera takes the picture and then closes the camera. The picture is actually saved. Is this normal behavior?
Try lazy or SB.
Not going back to 11, everything I need works. additional bits will be Nice to have stuff. Battery is Good, Wifi is clever in A12 it automatically switches between 2.5 and 5Ghz. If I'm downstairs it uses 5 and upstairs furthest away from router it switches to 2.5 and the back to 5 again when back downstairs. Never had it working like that on A11. BT works fine with my car. I'm a happy camper.