Sometimes when sprinting players experience the sprint begining to start and stop while still just holding down the 'w' key, which also includes having the focus zoom in and out between the normal focus of walking and the focus of sprinting.
MC-97552
Jittery sprint start
Resolved
Duplicate
0
duplicate of MC-1171, reopening that one as it's incorrectly resolved as duplicate of another issue (which was already fixed)