Industrial Foregoing Version: 3.3.2.3

Titanium Version: 3.7.2

Upgrades vanish when middle mouse button is pressed

For context, this is in the FTB Skies modpack. I have not tested this on its own.

That is the mod that sorts fault, as its not a traditional inventory.

Ahh perfect, wasn't sure as I was also told by a friend that it does it with some machines but not others.