raoul I noticed the "Test-build" for Intel Macs, it does install and loads up. However it exhibits the same problem that I experienced with RC4.
I did a completely clean install with only the sample songs, all the default settings and all supplied themes.
OpenLP started and left to complete all the thumbnail stuff.
Selected first song on the list and sent it to "Live" (see screenshot below)
After 13 / 14 minutes, the song appeared in the live window but nothing in the display window. The problem is that the song was split line by line (see screenshot below)
I checked the edit song option and all seemed in order.