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For issues:

• If the issue seems to affect only one mod, report to them instead of here.
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Thanks for the report!
I have removed support for FTB Library and now recommend installing the Configured mod to configure mods in-game. Sorry, I wish this was built into Forge like in previous versions.

So why don't you do what it tells you and install the FTB GUI library or (better) use MrCrayfish's Configured mod instead?

👎