Added in Integrated Dynamics 1.9-0.3.8 and it causes the following crash: http://pastebin.com/UGsqiQDN

Remove Modular Systems and no crash occurs
Remove Integrated Dynamics and no crash occurs
Put them together and BOOM!!

Don't know who's problem this is @Dyonovan

FOR REFERENCE: Disable the proxy block in IntDyn's config and the game should be able to run.

Huh, that seems like a tile entity name scoping issue. I though those were handled automatically by Forge. I guess I'll have to look into it.

Yeah I found the issue on Modular Systems github TeamCoS/Modular-Systems#123

Ive never seen this before either. Forge is supposed to take care of this when you register the tileentity

Where are you registering your tile entities? I don't see any calls to GameRegistry.registerTileEntity?

@Dyonovan The tile registration is abstracted in CyclopsCore here: https://github.com/CyclopsMC/CyclopsCore/blob/master-1.9/src/main/java/org/cyclops/cyclopscore/config/configurabletypeaction/BlockAction.java#L94

But it looks like GameRegistry#registerTileEntity does not take into account mod scoping. It's strange that I never had such an issue before...
It looks like we will have to rename all of our TE id's. Apparently the method GameRegistry#registerTileEntityWithAlternatives allows you to rename TE id's with backwards compatibility. I'll try to implement this ASAP.

Fixed in CyclopsMC/CyclopsCore@6a81ba4

Nope this still occurs.

CyclopsCore-1.9-0.5.9.jar
forge-1.9-12.16.1.1900-universal.jar

http://pastebin.com/E19pK2yS

@b0bst3r Try updating Modular systems once they fix the bug, I assume they will also have to make the change to solve the conflict.

Yeah that's not likely to happen anytime soon unfortunately, but still need malisis fix anyway for Int Dyn, so at that point we will have to remove Mod Systems and probably Neotech since it's covered in bugs.