Yes, can confirm that it's still not sorted.
I'm not sure how much more Microsoft are actually doing behind the scenes to resolve this.
I've had this issue since July, and have been in frequent contact with them.
Back in early September, we were notified that a fix had been pushed, and around 50% of our categories re-appeared.
However, in the months since then, there has been zero progress, although we're still in touch with Microsoft on a weekly basis.
As recently as this morning, they contacted me to send them another data dump.
One of the Engineer's vaguely suggested that it might be an issue with our individual account being corrupted and not synching correctly, hence why we're only seeing half the data.
If that's the case, then it could suggest why not everyone is having this issue, but it would also suggest that a significant number of us have corrupted accounts.
Either way, I don't think we can expect a fix anytime soon.
Might be time to start exploring a MacOS or Google alternative.
That's what we're currently doing.