Playback and audio render failure

I have completed a 33 minute slideshow with video, stills and music. When I attempt a playback, it takes approximately one minute for the playback to begin. If I pause and restart the playback, it again takes about a minute for the playback to restart. I’ve attempted to render the slide show to a DVD output. The video section renders but the audio render locks up. No other of my slideshows are affected in this way. I’m using a MacPro with Sierra.

I found if I delete audio track, the playback will start but if I try to render video as DVD, the software freezes about half way through a 33 minute program. Every time I update this software, some new problem pops up. I doubt BOINX will ever get it right. Really pisses me off, PITA.