model: iphone xs max
firmvware version: ios 12.1.1 beta1
this issue is obvisly in dark enviroment, if you set auto-brightness on, the screen is flickering randomly.
if you sliding the brightness bar down slowly, the flickering poiont is at about 20% of brightness bar. the flickering point shows that a bit white backgroud becomes suddently to a bit dark background. at that point the brightness moves not smooth like other brightness point
i founded the issue is related with night-shift, true-tone and screen record.
night-shift on + true-tone on: flickering
night-shift off + true-tone on: flickering
night-shift on + true-tone off: flickering
night-shift off + true-tone off: no flickering
if you open the screen record, there's no any issue.
night-shift on + true-tone on + screen record on : no flickering
i hope the bug will be solved soon. this is really annoying
