Yeah have the same problem, was working fine before previous updates but now I'm not receiving notifications for a few apps.
Thinking of reverting back to 6.12.22 seemed to be the most 'stable' for me lol
Mi5s Plus
Anyone having notification issues? - had some settings on IFTTT now the noficatons aren't coming through, which is preventing notifications on my pebble as well.
Battery life is absolutely amazing with this update, FYI - only issue I had was fb messenger force closing on reboot, just deleted it and reinstalled and seems fine now.