No, it does not happen always... A few minutes ago i got this always for a short period then it works.
When i try it now (after restarting the ide a few times) all works like expected.
I got the issue after i fist started the newly installed beta #4
I´ll post update if i get this again
How can i get the version of the .net Framework installed? I dont know which i have installed
Edit: I have installed 4.5.2 (+ German Languagepack for 4.5.2)