Factorio Forums

Belts are set to read belt, hold. Inserters are set to enable/disable, active when red/green science = 0.

Can't take a video but basically the belt is spinning while the items stay still. You can see the top (red sci) inserter trying to drop an item.

Picking up the items (manually or via inserter) allows the items to rotate again and picks up the "correct" item so it doesn't appear to be visual desync.

EDIT: This happens with any full rotating belt, I'm dumb. Known? Intentional?

Thanks for the report. That's how belts work: when a circular belt is full the items on it stop moving because of how the game does item movement on belts. *some* part of the belt is the "front" and when it tries to move "forward" it can't because there's stuff in the way and so it stops all movement.

It's known and not something we're looking to change.