So I recently returned to Skyrim from a hiatus, and found two issues. One, loading some of my old saved (and modded) games was initially fine, but when I try to save the game immediately crashes and I'm returned to the desktop. Second, when I try to start a new game, the intro is incredibly buggy, with the carriage rolling and cartwheeling everywhere and the horses slowly taking bludgeoning damage. I don't have a huge number of mods but I will list them:

1. BIG: Sneaking bonuses for what you wear ( a better improvements for gameplay mod)
2. WAR: Specialized Weapons
3. Warchief armor
4. Become a bard
5. Bandolier - bags & Pouches
6. Improved sneak detection
7. Heavy armory - new weapons: dawnguard
8. Skyrim Spear V2
9. Ordinator
10. Heavy armory - New Weapons; Dragonborn
11. Staves of Skyrim
12. Wintermyst
13. Throwing weapons reduc
14. Drakul armor
15. Digitigrade khajit argonian raptor feet
16. Apocalypse magic

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I did subscribe to a few more mods before resuming, but have since unsubscribed while trying to solve the issue. I think they were detailed cities, immersive saturation, bones and skeletons retexture, realistic lighting and colours, beast skeletons.

I'm not certain what's gone wrong, I had created three different moded characters with no issue before, not I'm not certain what's going wrong.