What I did:

I updated cd4017be_lib to the latest version and the game crashes saying it requires [cd4017be_lib@[6.4.10,6.5.0)

What happened:

crash-2020-08-15_18.24.37-server.txt

What should have happened:

Launch

Used Versions:

• Minecraft-1.12.2
• InductiveLogistics-1.3.4
• CD4017BE_lib-6.5.1
• Forge-14.23.5.2854

Sorry I didn't notice the version compatibility range configured in the mod ran out after lib v.6.5.0.
A fixed version is available at CurseForge now.