Factorio Forums

Pressing the spacebar while moving on a server causes some strange behavior, causing the player to teleport backwards and then 'rush' back to where they should be. Especially when spacebar (or "c") does not actually cause the player to fire at anything.

To recreate:
Join a server with some amount of latency.
Move in any direction.
Tap spacebar or "c"
Observe the jerky player movement.

Thanks for the report.

This is the latency hiding system being disabled while you're attempting to shoot. That's intended: trying to simulate shooting in the latency state is something we haven't done due to the extreme complexity so when you shoot we simply disable it until you stop shooting.