Hey, @Bigjohn, the math still has me convinced this is a DPI issue (see my post in your other thread). I just tried it to see – created a 5" square at 90dpi in Affinity Designer (because I know how to set the DPI in there, and I don’t in Inkscape). Imported it into my GFUI, and I get this:
This might be a long shot but deleting your inkscape preferences file might be worth trying. I had really weird inkscape behavior a while back and ultimately ditching the prefs file (inkscape automatically reverts to defaults and makes a new one) was the only thing that helped.
I asked this about a week or 2 ago and got an answer. I also put the answer on my website. Under preferences there is an area that says bitmap. You must change all 3 DPI settings to 96 DPI. from then on You must Open a new ink scape document and copy and paste your old file into the new 1. Changing it For me did not impact ones I already created at the old DPI