Resizing Issue in Cubase 7 64bit

I run into problems with my vst plugin under Cubase 7 64bit. Resizing the plugin gui does not update the plug in window size. After reopen the qui the window size is as expected.

That’s odd, as Cubase has always been one of the better hosts for window resizing… What about other hosts?

It is just Cubase 64bit. Cubase 32bit and all other hosts are working fine.