I know several people have been having trouble, and i don't have a great answer. For whatever reason, the host we use sometimes just times out. The perils of using a free hosting service, I think.The best thing to do is make sure you're using the current script (it's not really much better at preventing errors, but it is much better at letting you know if there was a problem), and then if (when) you get one that fails, just wait a few minutes and send it again. I've had times where i've had to do this 4-5 times before it'll go through. Trust me I'm trying to improve it, but for now, just need some patience. I don't think it has anything to do with the skill drops... there are plenty of those properly recorded in the database, and eventually I'll try to do something with them, but for now they're just silently being recorded.
Err you need GM addon on Chrome too. I use Chrome btw, I like it better than FF.
I've noticed a few times that I get the error that it didn't update but when I look at the site, it has the training record updated already. I wonder if there might be something somewhere that's creating a false positive error message or some such?
I meant the Chrome extension.