Hello, the new alpha version did indeed provide a much better error message and I managed to get past it by quite a lot. However, at about 30 mins in I got another 'duplicates not allowed' inside the actual DynDOLOD window, and no error pop up like the previous attempts. The lodgen is still progressing, not sure if it's borked atm, but I'll let it run until I get an answer. Picture of the message: https://imgur.com/a/pQ8cJ5H Edit: I gave it about 20 - 30 mins, and it didn't progress past the error message. bugreport.txt: https://pastebin.com/k1Rd31k0 DynDOLOD_SSE_Debug_log.txt: https://ufile.io/mjrv8oxo