I had to re install my "EMUI software update" to get it to flash. I had deleted it.
Reading what you wrote you reminded me that my "EMUI software update" was hibernate with Titanium..
Notes to be aware of
Google Pay does not, nor has ever liked ROOT. Nor do pretty much any pay type apps. So make sure you use Magisk Manager, and click on the 3 lines in the top left corner and select Magisk Hide and scroll down to Google Pay...
Thank you freeza!
all this img version 166 ?