Lightroom 5.5 crashes when rating pictures.

Couple of days ago my lightroom started to crash when I was reviewing pictures and making ratings. It crashes every 3-4 hundred photos.

I was very surprised as I'm doing ratings quite a lot recently and did not have such a problem. One day was all right, the second - crashes. Answering obvious question, I did not change anything in my system - didn't install or uninstall, add or whatever. Nothing. And here is the best part. I've read on adobe, that I should replace "ui.dll" file within lightroom program files folder, which is responsible for the problem. I did. And the problem was gone. So I've worked for some time and hibernate the system. Next morning, I couldn't start lightroom! It was crashing immediately! Nothing helped, but uninstall, clear everything and install back.

So what should I do? Lightroom still crashes when rating and I don't want to switch this ui.dll because I don't have a time to make another reinstall.