Howdy Sheson, There may be a problem with the mesh `meshes/lod/dwemer/dwefacadebridgecurve03_lod.nif` in DynDOLOD Resources SE 2.67. I noticed I was getting CTDs on walking toward Markarth from Salvius Farm. Using the crash log from .NET Framework (which gives a stack dump on any CTD), I saw this mesh show up in the stack at the time of the crash. This file seems to be new with the 2.67 version of the resources so I replaced it with `meshes/lod/dwemer/dwefacadebridgecurve03_lod_2.nif` from version 2.66, renaming accordingly. I can confirm that fixed my CTD. I looked at the suspect mesh with NifSkope and it looks pretty simple, file wasn't corrupt or anything. Nifscan also reported no issues. So it doesn't make sense to me why this mesh would cause a CTD, but I thought I'd pass along the info in case it helps. Oh and this was tested with version 1.5.80 of Skyrim SE + LOD generated by version 2.68 of DynDOLOD. I do have this mod installed which modifies Markarth: https://www.nexusmods.com/skyrimspecialedition/mods/22482 but Markarth LOD was working for me with this mod prior to updating to DynDOLOD 2.68 / DynDOLOD Resources 2.67. I'm happy to test if you need help troubleshooting further or need more info. Thanks!
