I’m a new user and have been having this exact problem. I wasn’t sure if I was just misunderstanding some important distinction between certain rems that show up in search vs. not, but it looks like I’m not alone with this problem.
The most recent example that led to me searching for this just now is that I was trying to tag a rem with “##Image,” which I created and used yesterday, and literally nothing showed up in the search except for the times I used the word “image” in text. It doesn’t show no matter how I search—via ##, [[, or even CMD + P.
I was almost certainly going to be buying the lifetime plan after my trial is up, but when functionality as critical as search doesn’t even work, it really makes me worried that core features like finding every reference won’t work properly, either. This is a very big issue, in my opinion, so I really hope they get it sorted soon!