My last achievement on RIME dissappeared just after I unlocked it and now my completion...

Correct sniffles x, many of the achievements unlock some time later, or after you load another game on your console, then return to Destiny and hey presto, up it pops. My last one did just that, so now 100% completion, hoorah!!

Same here! I was able to unlock achievements last night at about 11:30 P.M. EST on Powerstar Golf. Just now I was playing Watch Dogs and completed 4 different big achievements but they did not unlock. I go to check my game progress for my Watch Dogs achievements
and everything is gone. I tried to do a mission to see if it the progress went up, it did not. What is going on?

I think I unlocked four achievements last night without getting my daily reward then I tried this morning. Two more achievements didn't help. Finally this afternoon after unlocking one more achievement I got my fifty reward points. I'm not sure if there
is a bug with the rewards app or if you have to wait twenty four hours after you unlock your last reward. I just started to run into this problem two days ago.

Yeah Hellfire IRL, that is why im so concerned about this achievement. Ive worked since I got my 360 at 100% completion and now its currently ruined thanks to this achievement so I hope that it will unlock. Guacamelee is also proving to have some glitchy
achievements as they unlocked 4 hours after I completed them or not at all.

Same, noticed it last night after missing out on like 175G in UFC and another 75G in Assassins creed 4, which now shows the progress for the completion achievement in the freedom cry dlc as 100% but not unlocked. I tried hard resets, removing my account
from the xbox and then putting it back. Just waiting to see if they ever pop