Random title positioning and double audio after render

I have a 15 minute Premiere Rush video project with music and title cards at the beginning and end, and about 14 titles used as text popups  throughout the main video sequence.  When played in Edit mode, everything works fine.  When rendered, the popups appear in random locations in the timeline and the opening music sounds duplicated.  I've tried different rendering settings from low filesize/quality to high quality output and get the same result.  I'm using Premiere Rush v1.5.20 on Windows 10.  Is there anything I can do?