
Hello Rod,
(Unless you specifically load the organ via "Organ | Loading organ, adjusting rank audio/memory options", or via the "Design tools" menu), Hauptwerk will always try to load the organ from cache, and if that fails it will (re)generate the organ's cache so that it should load from cache next time.
If it's failing to load from cache then looking in the log ("View activity log") after loading the organ should show the reason.
I suggest:
1. Load the first organ via "Organ | Load organ", allowing its cache to generate if needed.
2. Do likewise for the second organ.
3. Now load the first organ again via "Organ | Load organ" (*not* "Organ | Loading organ, adjusting rank audio/memory options").
4. Now load the second organ again via "Organ | Load organ" (*not* "Organ | Loading organ, adjusting rank audio/memory options").
5. If the caches were regenerated in either of the last two steps, then use "Help | Create a diagnostic file", in case you need us to look at it for you.
6. Use "View activity log" and see what reason(s) it stated for the caches being regenerated as the organs loaded in steps 3 and 4.