I'm using a android tab to test. there 5 buttons in d scene.
and SOMETIMES the UI crashes like this.

Not only my project. but sometimes the example project also like this, even when I run in unity.
it's not very often, about once in 10 runs. but if I have 1m players that will be 10k ppl having this issue lol

then they'd give me 1 star oh no

probbly it might help?

and also I set 24-bit and 32-bit buffer to true in the resolution setting.
cos I have this problem before w/o Playmaker, then I think Playmaker's not the cause
