Glitchy movement

When testing a map I made, occasionally the player’s movement becomes spastic like he’s got a heavy anchor attached to him with elastic. He sometimes gets stuck and suddenly goes through the floor and back. I can stop this by walking onto ground that is higher or lower than the ground I was on.

Is this caused by a mapping issue? What can I do to safeguard against it?

Sorry for bumping, I still have this issue

mmm does it only happen when you look/go into a certain place? (Don’t fully understand what you said in first post.)

it may be lag, lag can cause various problems like this. Check your ping

See, I would say play the map, turn on cheats and do +showbudget because you can tell which places you look/go are really tearing down your FPS