First person swimming animations idle fallback is broken
How to: Ready the magic stance with R and submerge. Only in 1st Person, the arms will turn 360 while you're swimming.
Tested without animation mods. Linux Mint 19 64 Bits. 0.44.0+git201810031123~ubuntu18.04.1 (2018-10-03)
Edited by Alexei Kotov