I just updated the modpack and server to version 0.4.0.
This should fix all the dark chunk issues and the generally weird entity behavior related to it. Immersive Engineering was also finally updated to 1.14 and has been added to the pack. As always please report any new issues to the mod authors!
Full changelog on CurseForge: https://www.curseforge.com/minecraft/modpacks/kreation/files/2925187