Sorry for double posting(my account is too new for me to edit my last post)
I still get the map crash issue with only DynDOLOD.esm active, I can only avoid it if I have both disabled.
Good. That narrows it down quite a bit.
You can now do a binary search type of thing where you make a backup of the plugin and use xEdit to remove batches of records from the ESM. If the problem is gone, go back to the backup and remove other records. That way you will eventually end up only with the record causing the problem.
Logically the issue should only be with records with the worldspace Tamriel. So start by removing all other worldspaces. You do this in xEdit by right clicking on the worldspace name and selecting remove.
If it still has the issue after removing them, remove the Tamriel persistent cell 00000D74. If the problem goes away go back to the update and remove all "Blocks" which are childs of 0000003C Tamriel. If the problem seems to be in one of the "Blocks", remove them one by one or in 50% batches. The continue with the subblocks etc. Once you are down to a cell, remove the content of the CELL first.
It is possible that the problem is with something on the worldspace record 3C itself. So you might want to do a quicktest with removing all childs first.
In any case you should be able to narrow it down to a single record and it will go pretty quickly if you remove half the records each time.
Let me know if anything is unclear or needs more explanation.