Problem EnderIO loading in SP but not on a server in custom modpack

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Muufti

New Member
Aug 23, 2020
2
0
2
I'm having some issues using EnderIO on my custom 1.7.10 modpack server. On singleplayer the mod works with no issues, but me and some friends are running a server and the mod simply doesn't work. The mods used are identical between the single and multiplayer versions. When attempting to craft an EnderIO item, it appears in the crafting result, but the item number is "-1", and the items do not appear in NEI. The server sees the mod .jar as a "non-mod file" when loading.


I tried using an older version of AE2 as suggested by the crash report, but this resulted in the server failing to start.

The crafting window with the "-1"
-1.png
 

Muufti

New Member
Aug 23, 2020
2
0
2
Try without optifine
Forgot to include in the original post, I've tried that. Myself and every other member of the server has tried loading without optifine to no effect. The server does not have optifine installed either.