The player when walking on a certain tile is pulled forcefully in a given direction. I have only noticed this on a small patch of grass adjacent to water. It is possible to get off of the affected tile(s) but there is a struggle. 

I have included some media if it helps. The frame rate is low due to software restrictions but the point is to provide context. I hope this helps.

[Bug GIF|https://recordit.co/1SoViOjusu]