In my first screen shot I had just won in a 2v1 battle. I only received 1 renown for each kill (to be expected with that much AAO for order), however no other rewards dropped either (cash, gear or tokens) which is odd.

In my second screen shot something even odder happened. I was fighting in front of the Dark Elf keep, a nice scrum of around 6-12 players on each side and I died. No biggie, happens all the time, and I noticed that a level 18 player got the killing blow. The odd thing is that I spotted him around a minute later and he had gained 7 levels in that time...

I'm not accusing him of cheating, I think whats happening is some sort of weird server hiccup causing a delay in reporting some statistics and that this hiccup may also be causing rewards to be lost when it happens. Dunno if anything can be done about it, and I have no idea on how you'd report this on the bug tracker. I just noticed this right after the patch, and figured I'd let the Devs know about it...