Not a 100% sure if all this issues are related to DB but I've all the DLCs and this hasn't happened to me before Dragonborn (5 chars, over 400 hours)
- Dragons won't give up their souls and won't burn up (All but the named ones, the ones Miraak steals)
- Dragons stop mid-fight and just circle the pc's position, they take no damage after that. (Fixable by traveling, so the dragons reset to idle) (5x in 20 h)
- After installing DB, all random dragons (Skyrim & Solstheim) spawn as regular grey dragons and are really easy to kill (Expert & Master difficulty, pc's Level 55, 67)
- idle magic animation in hands is often missing, empty and unusable hands even when spells are selected (they look if they're holding spells but there is no spell animation or reaction when pushing the triggers.)
- Performance:
- Major lags (around 1-2 fps) while fighting more than 4-5 enemies on Solstheim, even indoors. (example: fighting the ash spawn in the ancestor tomb, or while spiders are exploding in your face)
- While on Solstheim I've got stuck in an endless loading screen (3 times), same 3d model but changing text (30 min before, i've decided reload the game)
- lags/fps issues when using magic
Cleared the cache, reinstalled the DLC's, the problems remain.