Can I just keep BOTH DLCs "ON" in the DLC tab ?
Will that still work ?
I recently purchased and activated the City Simulation DLC. However, when trying to run the Subsidiary DLC, I get a Black screen.

The city simulation dlc works:

Strange, now it appears to be working:

PS: Do I have to toggle between the two DLCs that I currently have ?
Can I just keep BOTH "on" in the DLC tab ?