[4.7.1] [UMG] Inactive buttons in widget class

Hello

I have a small problem. I made a pawn, which contains: camera, box and widget on it. When i possess my pawn the buttons are inactive. There is no recive click events, hover events, nothing. I made my pawn like always. Doing the same things, but after the newest update [4.7.1] it all seems doesnt working. I compared my new pawn with the old one from [4.5.1] and everything looks same. So maybe, the newest update makes it a little bit diffrent.

Here is some pics from my blueprint setup.