Champion movement paths (Mo Pathin Mo Problems)

Recently I've gotten "stuck" by creeps and champions in new and exciting ways. Creeps can pin you against walls, and other map features making movement impossible. Friendly champions can completely block off paths.

Apologies for no screen shots, but this happens during games where my priority is not to stop and document the error. Anyone else seeing this? Did collision changes pushed out in 5.20 cause some strange edge cases?