OK, I deleted skyrim.esm and update.esm (and the dlc esms), verified with steam, and cleaned them with SSEEdit. Then I used SSEEdit to check them for errors, and a few came up. Could any of these be related to the problems I was having with DYNDOLOD? Skyrim.esm errors: https://pastebin.com/z8EAVkiB (a lot of "could not be resolved"s.) Update.esm: Dawnguard.esm: https://pastebin.com/RLWySPnq Dragonborn.esm: https://pastebin.com/ArwrewM2 Others: https://pastebin.com/WKjpwDbr