Description of the Bug

SerializationIsBad is bugged on version 1.5.0. It attempts to download a config file and fails. The issue has been fixed in version 1.5.2, which can be downloaded on their GitHub page. Please update the mod in the modpack.

Expected Behaviour

SerializationIsBad on current version -> Modpack starts.

Modpack Version

1.6.2.2

Screenshots

No response

Log

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Extra Info

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this is a known problem, an update will be pushed relatively soon

still waiting on a fix

you can fix it yourself by updating the mod serializationisbad in your modpack instance, that should resolve it

Thanks worked as you said.

fixed in 1.6.2.3 (which has been out for a while from the writing of this comment)