I made a simple demo on jsfiddle
If i click “Print this” button, nothing happend.
But if i call print dialogue from browser menu and then close it, “Print this” button works well.
Tested on Samsung Internet 184.108.40.206 on Xiaomi Redmi 4x and 220.127.116.11 on One Plus 5T
Thank you for reporting the issue, and for the demo.
We’ve scheduled a fix for 11.2.