Lyricfind not working

Hello, today i’ve bought a one month plex pass subscription, just because i wanted to try the lyricfind feature. After that, i’ve checked in the settings that the lyricsfind agent had become flagged and refreshed an album at random to see if it was working, but lyrics didn’t show up. I thus proceded to a full library refresh and waited a fistful of hours til it was completed. When i got back, still no lyrics showed up. I really don’t understand why this is happening. I’m pretty disappointed cause i got the pass just for that reason. Can someone help me?

Update: after a little usage i finally run into some tracks which had lyrics. But it’s like the chanches of finding lyrics is 1 on 10 albums, approximately. Just to give you an example: it gives me the lyrics for Borgore and Kavinksy albums, but it doesn’t for Pantera, Katatonia, or even Led Zeppelin: How on the earth is it possible that a lyrics finder agent doesn’t find lyrics for LED ZEPPELIN? Chances are it is either choosy, bugged or in the other case the possibile worst agent on the planet. Which one is true?

I am having a similar problem where Lyricfind updates the xml for some tracks but not others. For example, on Jimmy Buffet’s - Songs You Know By Heart, lyricfind only updates xml with lyrics for a few of the tracks. However, if I manually run the request through a browser then lyricfind says that it found the lyrics. An example is for the track Cheeseburger In Paradise. I have created and captured the log files and will make them available if they are required and someone tell me how to upload them.