So...
I logged on to my friend's server during a round of UHC and I duped my gold from 12 to 24. I have posted a Youtube video on my channel www.youtube.com/user/TheHDPad where I logged in multiple times after my friend's server kept going down due to their internet crashing ever so often because of his minecraft server(note:when more than 4 people go on his server, it begins crashing randomly because his internet can't really handle the amount of people logged on). I believe the issue was one where the server didn't have enough time to save the information sent by my computer and received on their end but I'm just reporting this, just in case it's an actual bug. Hope 1.9 is going to be as awesome as 1.8 has been.