I don’t know how many of you think that the scheduling algorithm is flawless and you are actually reviewing all your cards that you are supposed to review. In my case, I often get into this situation where, while just skimming through my notes, I notice some rems look really unfamiliar. Then I check the metadata of that rem just to realize that, even though the practice is enabled for that card, the card stopped showing up in the queue a long time ago. This card/rem will remain idle until I manually make some change to the card (so that the last modified time of the rem changes). I can find such lapsed cards in all my documents.
This is so demotivating because you put lots of effort into making cards, but you end up internalizing an incomplete version of the subject because you were not reviewing some of the crucial rems. Above all it is just disappointing to realize that you haven’t been reviewing some cards you think you were. I have been seeing this issue ever since I started using Remnote (from the very beginning of July)
This GIF explains the problem.
All the possible related GitHub issues