Reported to my modpack over xJon/The-1.12.2-Pack#532, and seems to be similar to #423:
Example gif

I did test this issue without other mods installed and could not reproduce it. Do you have any idea what's causing this?
Thank you!

For any bug reports please provide the following details as well,

• MC Version: 1.12.2
• C&B Version: 14.33
• MCMP Version: 2.5.3
• Do You have Optifine: No

Unfortunately any issues for the 1.12 version of C&B won't be looked at anymore.