Perhaps being really redundant, but if when you open serialosc file it looks like the screencap from above and is in the same place, I’d double check to be certain your grid studies is linking to it
If you open up the inspector for the bpatcher and under patcher > patcher file, just to make sure it’s linking to the correct place. Perhaps also open a new view of serialosc from the serialosc object (right click > object > ) in the grid studies patch to make sure that the version matches
I’d also suggest searching your whole comp for serialosc.maxpat, I know I’ve definitely had issues before where I had more than one in subfolders or elsewhere and it was pulling up the wrong one