Overbridge and Update 1.4 can't load sample on Track 1

I have a issue with not being able to load any sample on to track 1 anymore in Overbridge mode. It says sample off and it doesn’t allow me switch to a sample, it is always jumping back to sample off. All other Tracks (2-8) are just work fine. In standalone mode there is no issue at all. I did restart the unit as well as Logic Pro but that didn’t helped. Did someone experienced a similar issue? Thx