I just did map completions in Timberline Falls and Sparkfly Fen, neither of them gave the usual charge/key (all other rewards were fine). My character was level 70 +, and before then I was getting the charge/key from completed maps.
Did something change that I missed, or is this a bug?
Edit: nevermind, I found the reason on GW2 twitter. so glad I wasted my time doing those maps because it wasn't posted here.
70 'mains' and waiting for more slots
| 61 Asura | 6 Charr | 1 Norn | 1 Human | 1 Sylvari |