I have this problem when entering certain areas such as around forsaken cave, no matter what if i go within a certain distance i get "was equiped" in the top left corner and i have the effect, if im on a horse when i enter the area i get flung into the air and tossed around and also get the effect under my feet. The only solution i found was to uninstall USKP and remove the effect but it is not recommended as it apparently breaks saves