The movement controls for my game client are clunky as heck. I stop moving at random intervals when holding any of the movement keys. For example, I will stop moving forward when holding W, and will have to press it again. I don't know if this is a client-side bug. That's why I'm reporting.
UPDATE: Attached debug crash report
Please force a crash by holding F3+C for 10 or more seconds and attach the report here.