When you spawn into a map, you can roll in any direction before the map starts.
Steps to Reproduce
Don’t really know how it occurs but. It generally happens about 70% of the time. It could be cause by hold a directional key. But that doesn’t seem to be the case.
What I expected to happen
You Stay perfectly still with no movement.
What happened
You move in any direction whether it be forward or backwards.
Notes / Media
This bug has been know to kill people before a level starts
Here are some videos of that happening