After many many quicksaves and manual saves, I'm having an issue in the Monument area and environs where wandering NPCs "teleport" forward in their path, which makes them often vanish when I'm trying to interact/dialog with them. Also in this area, a few textures, notable car doors, will "flap" about and make banging noises. Any ideas?

Edit: I also cannot trade with Churchill. Looks like my saves might be borked. Mods installed (via MO2) are Address LIbrary - All in One, BackportedBA2Support-1_0, High FPS Physics Fix and Buffout 4. Launching via F4SE through the MO2 Run button.

Edit Edit: Oof. Reloaded a previous save a while back. Items on the ground started flying/floating everywhere.