Okay, I sent my fairy on a trip to Shang Simla to collect some rocks. I got back yesterday game time and went to make dinner. I noticed at that point that the opportunity I had to get 3 dragon fish didn't register as complete though I'd gotten 7 when I was in China, and also that fish and chips and sushi both would cost me 8 simoleans to make even though I have a lot of fish. After dinner I sent off all my ore to be smelted and analysed my space rocks and went to bed. When she woke up this morning and finished gardening I clicked on the gem cutter to get all her gems cut and the option is greyed out with a hover over text telling me I need gems in my inventory to use this item.
I've just quit and reloaded the game which didn't work, I guess next I'll try putting them in someone else's inventory, seeing if they register, then moving them back. However I would love to know if anyone's experienced this and might know a fix?
eta: moving them to another sim did not work, nor did resetting the sim who was holding them. if I collect more gems, those ones register, but still not the old ones. it seems I CAN use them directly out of inventory, which should work for the gems, but not to cook food using the fish or to hand in my dragon fish opportunity.