I think this actually is a veri niche crash with a very funny background.
I obviously have it too, that's why I'm replying.
At first I thought that Gray Cowl was the problem since it's the last thing shown in the log.
But when I ran Dyndolod WITHOUT Hybrid Trees, everything worked.
Comparing the logs, I could see why:
The next step that is done after the
Reading Large Reference Data for mannyGFDesert "Alik'r Desert" [WRLD:08200000]
line is that Dyndolod checks the log files of Lodgen to see if everything worked alright.
BUT - when running Dyndolod with hybrid trees, the Tamriel worldspace takes so long that lodgen is not finished for it when dyndolod wants to check its log.
The log is still empty then, which I suspect to be the cause of the crash. Lodgen is still running fine at that point, and waiting a few more minutes it finishes without errors, but sadly after Dyndolod tried to check its log.
This error occured on multiple tries, always at the same point in Dyndolod, and Lodgen was always still running for the tamriel worldspace.
Thanks for checking this!
Extra info: using Dyndolod v2.32 for SSE
and tons of high resolution mods, massive worldspace mods like Bruma, and Beyond Reach, etc.