As far as I can tell, from my end, you still look subscribed to get them.
For forum notifications, sometimes they “delink” for some reason. A fix for that has been to click the Unsubscribe word in the top right of the forum page and then click the word Subscribe. That usually re-links them.
I can confirm the system is still sending out alerts to my subscribers and I can confirm that people are still receiving them. Aside from that one fix I mentioned, I can’t see why its not letting you get notifications on other things though.
Try that one fix and let me know if that fixes that part. If anyone else has any thoughts on a fix, feel free to chime in.