This is a problem similar to the one that lasted for years and I thought, with new RH panel, is sorted out.
For years the only trusted way of importing external files that never-ever failed to load was using Human.
We are trying to move to V8 but the all-new Import Content reads error on an identical file:
After recomputing the problem is gone:
This is a huge warning sign for us. Loading external file is the essence of our workflow. Put the text scaling problem together and you get the big STOP for upgrade..
I have put this into more extensive test. The verdict is - it happens e v e r y s i n g l e t i m e .