[1.7.10] UMC Childmods not working after world reenter

Issue:

If you enter a world for the first time after game start, everysthing is working just fine. Once you leave to the main menu and reenter the world, the umc childmods dont work anymore. => Can't place new blocks, GUIs dont work correctly resulting in either nothing happening, getting kicked to main menu or crashing the game. (Usually it crashes with NullPointerException: Ticking Memory Exception)

This was once tested with:

UMC 1.1.3, LandOfSignals 0.0.4-HOTFIX-1
UMC 1.1.3, TrackAPI 1.2, ImmersiveRailroading 1.9.1 => No other mods involved.

Addition: Tested with MultiMC and the normal MC Launcher Addition: World -> Singleplayer world.

Affected MC versions:

Only tested/issued for 1.7.10

Workarounds:

Before reentering the world, deleting the /cache/universalmodcore/ Folder prevents this issue.

TeamOpenIndustry / UniversalModCore