GTA Online Level 50 Achievement did not unlock

Perhaps you should raise a support ticket at support.rockstargames.com

Hit level G2 50 last night and it still DID NOT unlock. I haven't regenerated yet (going for the unlock everything achievement first) but yeah reaching level 50 again didn't unlock it.

Only 2-3 of online achievements unlocked for me, however there are some that haven't, including the achievement for completing the intro to GTA Online, despite transferring a level 45 character.

I hit 50 earlier this week, and neither the Early Adopter challenge nor the Maxed Out achievement unlocked. (I could even pull up the Maxed Out achievement on the Achievements app and on Smartglass, and they both showed 100%, but locked.)

I played a lot of games sitting at level 50, because I was really close to unlocking all weapon mods and wanted to get that achievement. Last night, I did, and that achievement popped as soon as the game finished where I completed the last needed challenge.

Then I went so far as to delete my game data, delete the game itself, and reinstall the game. On the first load, it showed me the intro movie and took me to the training, but after "syncing with servers", I was back at level 50 with all my weapon unlocks.
But still no challenge or achievement for level 50. Played a couple more games, still no achievement or challenge.

I went ahead and Regenerated (which unlocked "My Generation" immediately) and played some more. But no sign of that level 50 achievement or challenge.

I hit 50 earlier this week, and neither the Early Adopter challenge nor the Maxed Out achievement unlocked. (I could even pull up the Maxed Out achievement on the Achievements app and on Smartglass, and they both showed 100%, but locked.)

I played a lot of games sitting at level 50, because I was really close to unlocking all weapon mods and wanted to get that achievement. Last night, I did, and that achievement popped as soon as the game finished where I completed the last needed challenge.

Then I went so far as to delete my game data, delete the game itself, and reinstall the game. On the first load, it showed me the intro movie and took me to the training, but after "syncing with servers", I was back at level 50 with all my weapon unlocks.
But still no challenge or achievement for level 50. Played a couple more games, still no achievement or challenge.

I went ahead and Regenerated (which unlocked "My Generation" immediately) and played some more. But no sign of that level 50 achievement or challenge -- both remain locked.