[NeoCZ]

Yes, internet is active, is there any way I can check crash reports are made? Are they stored somewhere in MS folder? 

I make crescendo this way - select it from radial menu, draw a line using a pen from where I want it to start to point where I want it to end.

Don't know why you don't see dashed line bug. I just create new placeholder (blank song), open it, set pen to dashed and see bug described above. I also tried it with regular PDF and it's the same. The same applies to eraser bug.

EDIT: Just sent you PM with link to video showing those bugs...