Using anking step 1 V12. For the medschool bootcamp tags in hematology and oncology, it still shows the subsections, but most of them are empty when I’ve used them before and I know most had cards tagged to them. For example, if I click on microcytic anemia, no cards pop up. Same when I click on subcategories within microcytic anemia. It was working yesterday, so I’m not sure what happened. If restarted anki multiple times and its the same.
Did you recently change the tags you are protecting?
If you run tools->check collection (or database), among other things, Anki will delete unused tags.
Yup, it looks like that was the issue. I appreciate your help!