Issue description:

Something involving an Importer causes an immediate crash to desktop.

What happens:

The game closes unexpectedly.

What you expected to happen:

It shouldn't close unexpectedly.

Steps to reproduce:

1. I'm unsure. I have a save file that does it 100% of the time when you load it, but I don't know how I caused the issue in the first place. Will send necessary files upon request.

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

• Minecraft: 1.10.2
• Forge: v12.18.3.2221
• Refined Storage: 1.2.22

Does this issue occur on a server? Unknown.

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

https://gist.github.com/denoflionsx/86214006e0e6ae36989995f7b63d058d

After reverting to a backup we managed to make it to the troublesome importer before it crashed using the coordinates from the log. It was attached to a Dimensional Transceiver from EnderIO. We put a chest between the two but the crash continues to happen.

After further experimentation this crash seems to be caused by Stack Upgrades. Here is the same type of crash happening in a Disk Manipulator: https://gist.github.com/denoflionsx/266374099c659c7f1f04db407ff142d9