i was running 2051 in main and it crashed every time i tried to match cys 4 to cys 46 (manually and with brow bridge script). switched to devprev and no crashes
You may be experiencing what I did in recent puzzles. See the discussion at https://fold.it/portal/node/2012027 .
Boots: Interesting. It didn't seem to matter whether banded to cysteine sulfurs or cysteine hydrogens. I tried both ways and it always crashed when trying to connect cys 4 to cys 46 in main (at least for me). No crashes when i switched to devprev (either way of banding).