I am using 4.5 RC1.
Previously I had been playing around with various texture options before trying the JM Alexandre texture and it was when I tried to apply one of the makeup options that I started to get the strange results.
However, this time I started from scratch with a ‘clean’ M5 and followed your advice and everything worked as it should.
I haven’t been able to reproduce the problem so I don’t know whether it was a quirk of 4.5RC or what.
But it helped to know that what I was trying was possible.
The Alexandre texture does look good on M5.