Bug with Rigged Bodies

Hi! I’ve been an UE4 user for about a month and last week, when I updated my MAC to the new Yosemite OS I also had to install the new unreal 4.5 build. Everything seemed to be fine, but as soon as I load Epic’s ContentExamples project some weird graphics bugs started to appear. Rigged bodies seems to be broken and act in really weird ways.

Here’s one example:

Do you think it can be a problem of the drivers? I just ask because Nvidia doesn’t have a great driver support on MAC OS X (I’m using the nvidia web drivers btw), but with the previous versions of the engine everything worked fine…

I hope you can help me, because I was going to start a project and because of this I must put it on hold until I got it solved -__-

Update to 4.5.1 which includes a workaround for an Apple/Nvidia OpenGL driver bug introduced in 10.10.0.