I use Open Cities in SSE so I'm creating the LODs using the two-step procedure described in the manual and the GamerPoets video. I'm getting CTDs for both Falskaar and Solstheim. To be more exact, as soon as I try to travel to Solstheim via the Northern Maiden, I get a CTD. Same thing with Falskaar: the instant I try to enter the Falskaar world, CTD. If I completely deactivate and remove DynDOLOD, both Solstheim and Falskaar work fine. Interestingly, I'm getting no issues with anything else. Even Beyond Skyrim - Bruma is working just fine with DynDOLOD.
Do you need me to post the logs for both steps of the process, or is this already a known issue with Open Cities?