GlikeG Sorry you feel this way. I know this is not really an excuse, but for most of users faces recognition in Tonfotos “just works” and they do not have same negative experience as you have, and they never have to re-index photos. If I remember correctly, this all started for you with CUDA not functioning correctly, which happens sometimes, but only for small portion of the users. We tend to assume this has to do with NVidia drivers malfunction or GPU working unstable, but we don’t know for sure, unfortuntately.
Regarding item 3, this is totally my fault. This suggestion is outdated, it is not supposed to work as described. We changed something in our algorithms several months ago to improve stability, but I did not take this into account when suggesting it to you. Now, in current version you not only need to hide folder and then enable it again, you need to delelete tonfotos.ini files in that folder when it is still hidden. Only then it will result to re-recongition of all faces in your case (when previously faces were errourneously missed due to CUDA issue). Hope that makes sense.