Basically the title. When I cast or retrieve a fishing line, the end attached to the fishing rod just kinda zoops off the top corner of the screen before returning to the correct place. It takes the same amount of time to return to its proper place as the rest of the animation takes to play. I seem to remember it being fine when my main hand was set to "right" in the skin customization, only misbehaving when the main hand is set to "left," but now that I've switched back to make sure, the line is still misbehaving. So maybe I've just misremembered the line being fine before, or maybe switching the main hand to "left" permanently messed up the animation. I personally don't care enough to try to find out.

edit: https://youtu.be/Z2qCMAtAYKo