Problems to start DLC 1940

[balugluth]

Good morning, the installation works fine, but the campaign is not found by my game?
It does not appear in the Campaign Tree and after the end of 1939 I get the notice, that I did not install it.
I didn't have to record the serial number and wasn't asked for it.
My version is the 1.15.
I can find the scenarios in the folder and can also look at them in the editior.
Does anyone have an idea?

[Yinzer]

I am having similar issues. I have 1.15 loaded (and reloaded twice). My system crashes when I go from the end of 1939 to 1940 (it says DLC file missing). I also can't start 1940 from the beginning. Is there another patch?