Post 2.5.4.a update,the lens/night flare issue in Phone 2A is almost fixed. Though its there sometimes but its much better now. Also, for direct light source, in both primary camera normal mode and UW. the light source is still over exposed SOMETIMES but changing it to HDR or Ultra HDR fixes the issue to a large extent .Previously this was not happening.
One strange thing I am noticing in this new update , if there is automatic face detection in the image as well as a strong light source e.g if there is a light bulb/tv screen/laptop screen and a human being / picture is detected in the same frame using face detection, the light source suddenly becomes extremely over-exposed.Definitely a new bug which needs looked into.
Let me know if anyone else is facing this issue.
Really impressed with Nothing`s update rollout and quick rectification of bugs though I still believe camera and light control can be improved more given that both UW and primary lens are 50 MP.