Hello,
thanks for all your efforts in keeping templates and extensions updated, time-consuming job for sure
Since the on-board J update feature didn't work with the 3.9.19 template package, I've checked the quickstart package also.
In this package, the update feature doesn't work as well for the template itself, YT shortcuts and YT framework (see screenshots).
Additionally, the tmp directory in the quickstart ZIP file contains 12MBs of unneeded data, just to mention.
Please solve the update issue or disable updates in general (if not applicable) and make sure, that there is no bloat download for quickstart packages.
Thank you and keep up the valuable work