After trying a few things yesterday to figure out what was going on, I came to the conclusion that any havestables above normal quality disappear from the 3 storage containers when you save and exit for sure. a couple of oddities did show up. When I traveled to the Magic Realm with half the household, when I returned, the harvestables above normal quality appeared to still be in the containers but couldn't be accessed by cooking or spellmaking cauldron. When I traveled with the entire household, every harvestable above normal had disappeared upon return to the home lot. Another thing was that I had laid out some flowers in a planting bed that were perfect but hadn't planted. When I got back to the lot, they were still there. Any harvestables in my traveling sims inventories also stayed there unit I saved, quit and restarted the game. On opening the lot after the restart, everything above normal quality was gone again. One last thing, before I traveled, I harvested some wild sage and parsley in Glimmerbrook and made note of the quantities of each. All were normal and I stored a few of them in each container (fridge, box and flower bench). Also bought some apples and potatoes in the magic realm, both normal quality. On return from travel and after restart, all of the purchased harvestables and any I harvested from wild plants were still there. Bottom line I think is any harvestable above normal quality will disappear. The work around is to just use normal quality plants until a fix is made. There are multiple ways to get them. Seed packs, harvesting wild plants and buying from the various vendors in CL, RoM, harvesting festival plants, etc.