Hi I am a seasoned vfx artist and this is the first time I am having a problem with tracking what looks like a really simple mobile phone scene. Although I have large markers on the screen the track is amazingly off. Here I have added two screen shots, the first is frame on which the mask is added, the second is the first frame of tracking, I am amazed at the amount of drift.
The phone in the shot is an Xiaomi 9t pro, I have much much more stable shots when shooting the screen of an Iphone, which just adds more mystery to the problem.
I have added the collected after effects project.