I tried directly transporting my old IC2 save files from MC 1.12.2 to MC 1.19.2. However, I found almost all IC2 items (machines, building blocks, etc) were lost in 1.19.2. I've put a lot of effort into this save and I want to continue it in newer versions of both MC and IC2. How can I solve this problem?
Thanks for your attention!
JAVA MC (1.12.2), Forge (18.104.22.16838), IC2 (industrialcraft-2-2.8.222-ex112.jar).
JAVA MC (1.19.2), Forge (43.2.0), IC2 (industrialcraft-2-2.9.1+ex119-1.19.2-forge.jar)