[Fedora-music-list] Fedora Jam 34 (upgrade): Ardour 6.6 freezes during export or Loudness Analyzer

Just tried to export a sound file form Ardour 6.6 and found it does not work. Export dialog opens, lets you select settings, but upon clicking the export button it just freezes. The dialog can be dismissed and no errors (other than missing mp3 encoders which I wasn't using) show-up. Similar behavior with the loudness assistant.  I also selected real-time, and it plays through the song before freezing. I'll start hunting for a solution, in the meantime if you also are experiencing these problems please respond (especially if you have a solution). thanks, Keith