Hello there,
i happens several times, that i opened a door and after that i entered the house, i have strange lags while walking normaly.
When i then managed it to leave the house, the problem only disappeard, when i changed to another bodyposition (e.g. walking to crouch) and back to walking.
Houses with that seperate "dry"entrance (e.g. the wooden blockhouse) only. Especially, if you open and enter the house as fast as possible, the mystical lags start.
Somehow it kind of trapped you then.