I’m here to tell you all not to take shortcuts when creating KiCad footprints. I found some 48 pin footprint that had the right dimensions for the pins but didn’t have the right courtyard. I realised this at the time, and had left plenty of space - but came back to the project a while later, moved some stuff around to get it to route and of course - this dumbassery ensued:
These courtyards don’t overlap - this should be fine, right?
Ooops…
Now I’m waiting on some stackable headers to fix this mess…