This has affected almost all custom maps and other mods. If Exi hasn't already come up with solution, you may have to wait till the dev kit updates and he can address this. This is something in the shaders they changed from core Ark and Genesis, as a whole, has affectged a lot of other mods as well as custom maps. So, we'll just need to be patient for the fixes

You are not alone. There is a lot of this going around

Thank you very much ! ;)