Mod Version-Minecraft Version
Forge Version 1.18
Mod Version 1.18

Bug/Glitch Occurrence Context
Doesn't Crash. Works fine, almost.

What happened wrong
Relogging into game using any upgraded forge clears its inventory of fuel, upgrades, material to be refined and refined material

Fixed in 1.18.1-1.0.2

Thank you very much for reporting the serious bug