Video Doorbel 2 - No motion notifications although getting doorbell notifications when doorbell button is pushed

Hi, I've been using my doorbell 2 for 6 months+ and everything worked great. All of the sudden - I stopped getting motion notifications. When. pushing the doorbell button - it works as expected, seems like my iPhone notifications work, it's just motion events are non existing. Anyone having the same issue? Anybody from ring can chime in? (no pun intended...) Also, I'd love to reset the device but for some reason I can't take the cover off, even though I unscrewed the safety screw from the bottom (do I just need to pull really hard or is there anything I'm missing?) Thanks ahead