No, nothing was fixed even after this update. Refer to this post here on what the issues are. Even though this is the case, I am able to add a new YouTube channel to force refresh the list so not all is a loss.
However, to add on this as per this update, it looks like the scheduler is fetching videos that are “not available”.
In the previous version, downloading scheduled videos was still a hit-or-miss - the missed (unlucky) ones would analyze forever, as well as force my PC to strain because there’s more than two YouTubeToMP3Service.exe processors running endlessly, until the next update. Newer videos just fail outright now.
As I have to add a YouTube channel to force refresh the scheduled list, and I remove it after, there’s a chance the channel I previously subscribed to would appear as dummy data. Image enclosed

I already know that attempting to remove it will just delete my whole scheduled tab so I’ll just leave as is until the next update. I assume that, once the new update rolls on by, it will probably still remove my whole list anyway. I hope not.
To Stan001 . Indeed I will keep updating the thread in hopes that the developers will notice StreamFab is not working as intended. It’s just kind of disappointing this has been happening to me for a long while now. I expected bugs and loopholes being identified - especially for people who both cannot and refuse to update to Windows 11.
…Though I do not believe this is a YouTube issue - otherwise I would have indeed witness certain videos stay forever analyzing, which has indeed happened to me in a few instances. If something was wrong, “wouldn’t a (clean) reinstall work?” as I usually see responses on other threads… It’s just not working; something is indeed wrong with StreamFab - not to the point where it is unusable, no, but where I cannot have a good experience with a couple clicks. I think, if I was able to install Windows 11 otherwise, I probably would not be experiencing these problems at all.
7.0.1.7, Windows 10, x64