My explorer jumplist disappeared again

Previously an upgrade to 7077 cured it, and it stuck around after I installed 7120 (which I used for a few weeks). Now all of a sudden they're gone again. The only change I can think of that might have been related is the regedit to remove the "- shortcut" text I applied recently; but even then, that was a few days and restarts ago.
As with before the issue only occurs in my main profile (other users are fine). And the jumplist is also inaccessible when pinning explorer to the start menu (clicking the right arrow does nothing). Undoing the above mentioned registry change and restarting has had no effect.
If anyone knows how/where jumplist data is stored and where it's referenced in the registry or can offer suggestions on how I should go about to reset this, I would appreciate it. TIA