Oy, the MRB is kinda big. Couple of GB. I can see if I can trim it down… It’s an insect, of course, so no worries about making it anonymous, ha ha.
It is NOT the fcsv file - I copied my FCSV file from my setup that does not work into the one I just created with CTACardio, and I can right-click and it works fine. Likewise, if I copy the F.fcsv file from CTCardio to my setup that does not work, and I can’t right click. So it’s something in the MRML file. I’m checking the 3 blocks that have to do with markups.