"Unable to find a solution for the analog routing" error, when using two IDACs

Hi

So I'm trying to use two of the built in IDACs, for higher resolution, but it gives me the error:

"apr.M0003:Unable to find a solution for the analog routing"

A screenshot of this part of my TopDesign is attached. 

I also tried to test a different setup, to try and locate the error. The other attachment shows a setup which does not give errors. 

I'm using a PSoC 4200L (CYC4248NZI-L489)

Any ideas how to fix my issue, would be appreciated.