[0.15.19] Belts have odd behavior, appear stuck

[AgentMull]

https://youtu.be/jHT7_B2-PrQ

The video shows 4 belts leading into my Factorissimo factories that are just hanging there. The interior belts are still getting fed solid fuel, but the coal and the preceding belts don't seem to move. Belts before the incoming underground belt do seem to move fine. I have picked up one of the belts of coal, and they are real. They persist between instances of the game. Maybe this is only a bug with Factorissimo 2?

[Rseding91]

You'll need to contact the mod developer as that's nothing related to base game logic.

[MagmaMcFry]

My current belt connection system doesn't perfectly respect the order of items when there are multiple types of items on a single belt lane. The mechanics I use cause solid fuel to have priority over coal, so since your belt is always backed up, the coal never actually has a chance to get teleported.