Debug.log have this lines (its probably not cause any issues)

[11:26:32] [Client thread/TRACE] [FML]: Sending event FMLInitializationEvent to mod tweakersconstruct
[11:26:32] [Client thread/WARN] [tweakersconstruct]: [Pattern Cost] Entry:  has incorrect syntax, skipping.
[11:26:32] [Client thread/TRACE] [FML]: Sent event FMLInitializationEvent to mod tweakersconstruct

Seems like its problem with a config file, but i cant find any fields called "Pattern Cost".

Version
tweakersconstruct-1.12.2-1.5.3

The config field is actually called "Toolpart Cost" I should probably rename that. I think the reason it complains is that you have an empty line there.

Yes, empty line is here. I though empty line not registered as entry.

Thank you for answer!