Minecraft Version

1.12.2

Forge Version

14.23.3.2679

Mod Version

1.12.2-3.1.4

Describe your problem, including steps to reproduce it

https://www.youtube.com/watch?v=bjFY7eGHyH4&feature=youtu.be
Dupe Items when flinger/dropper module and vacuum module is installed in one router.

Any other comments?

it happend on sevtech age modpack.

Thanks, I'll take a look ASAP but I'm away from any computers for the next couple of days..

OK, it happens in Sevtech but not in any of my test worlds. The Dropper/Flinger create the items entities in Sevtech, but the item doesn't get removed from the router's buffer.

I suspect whichever mod causes item entities to render flat on the ground is also somehow causing World#spawnEntity() to return false (probably intercepting the EntityJoinWorldEvent, which would stop the code from extracting the item from the buffer.

Looking at the spawnEntity() code, I can probably safely ignore the return value, and always extract the item from the buffer, which would resolve this problem.

I can't reproduce this at all. The number of items in the router remains static, as I would expect. This is in my test instance, so it's possible some other mod in Sevtech is interfering. I'll try to test in Sevtech and see what happens there.

Fixed in 3.1.5 release.