Welcome to the Wyze User Community Forum @rosalie 
It is odd that you were getting any videos in the Events Tab without CamPlus. That change occured back in March 2022:
Cams without subscriptions:
- Thumbnail Snapshot upload only
- 5 Minute Cooldown between uploads
- Motion Detection only, no AI
Cams with CamPlus Lite:
- 12s Video upload
- 5 minute Cooldown between uploads
- Motion detection and Person Detection
Cams with CamPlus:
- Full length Video Uploads
- Back to Back video, no Cooldown
- Motion detection and full AI detection
Here is a topic that covered the change back in March: