Object references not created in 4.7 system

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Hi Wuger's

I'm currently working on a fresh 4.7 system. workflow customizing seems ok. However whenever I want to instantiate a object reference the system fails.

I tested several approaches and none of them worked. 

- I tested system.GenericInstantiate and it doesn't create a reference
- I created my own method and the macro "swc_create_object" doesn't work

This is very odd, since the exact same coding works in any other system. 

Does anybody has a solution or is anyone aware of any patches, which need to be applied?

Any input is highly appreciated!

Cheers,
Torsten