Wow! Great program. I had one minor problem which I solved quickly. My genealogy software created a GEDCOM file as version 5.5.1. I used a text editor and changed the version from 5.5.1 to 5.5 and Joaktree accepted the GEDCOM upload with no problems. I look froward to future enhancements.
Issue with version 5.5.1 is resolved in Joaktree component v1.2.4.