Issue description:

A player on my server was saying that when he was using the solderer it would eat some or all of the iron and gold he had put into there.

What happens:

he would put iron and gold in there and and would come back to find either the printed processors gone or not all there.
I tried it with mine but didn't have any problems, I then tried it with his a few times so times the amount i put in came back out but the last time i tried it i put a stack in 2 and when finished it only returned 70 .
I made sure that the solderers weren't connected to importers or anything else which they weren't.

What you expected to happen

to get the correct amount of processed items back.

Steps to reproduce:

1.place solderer
2.insert iron, gold, diamond or silicon in
3.wait for it to be processed
4. come back once it's done processing to see if all or some are there

Version (Make sure you are on the latest version before reporting):

• Minecraft: 1.10.2
• Forge: 12.18.2.2124
• Refined Storage: 1.2.4
• the server is running hermitpack 1.4.0
  Does this issue occur on a server? YES

If a (crash)log is relevant for this issue, link it here:

No crashlog
[pastebin/gist/etc link here]

This is fixed in dev