No, the update was done before the modification.
Still no preview - the window opens, but it will not allow me to view anything past the first frame, it just jumps back to the first frame all the time, whatever size I crop to.
ps: I added the new smdegrain.py mod version, same problem.
I have created a copy of the master file using Apple's Compressor, and this version loads with no problems.
Please share a new debug output, maybe something different is now the issue.
Cu Selur