I just recently completed a baseline STEP Core install following the guide as much as I could (skipped the mods that it said I could skip with ENBoost since it made me get that). It was working fine but I recently saved in Riverwood after talking to Sven and getting all his talk options out and now I can seem to load it. I'll freeze or it'll start loading fine with the music kicking in and everything but just not stop loading, one it just crashed to desktop.
I tried disabling the DynDOLOD stuff but when I started it up and went to load my file it said that it was depending on content that's no longer available, that sounded too dangerous to accept so I quit out and turned it back on.
Also tried loading my last save before that (an autosave just after leaving the starting cave), but it froze both times.
Current LOOT order, I think: