Is it possible that you are looking in the wrong place for recordings made to the SDcard?? Such ‘events’ are not found on the Events page. Instead, they are found by first selecting the camera of interest (if you have multiple Wyze cameras), and then tapping VIEW PLAYBACK. The Playback window will open, which features a horizontal timeline on which recorded videos (i.e., recorded to the SDcard) are indicated by tiny faint green lines. You can scroll the timeline left and right to find recordings at times of interest.
The Wyze user interface that deals with ‘events’ recorded to the cloud and ‘events’ recorded to the SDcard has been a source of confusion for many. Some think it to be a less-than-wise design.
If the timeline on the Events window is completely empty (and you have Local recording to micro SD Card set to Record events only), double-check on the positioning of the detection zone, and the sensitivity. Other troubleshooting steps include trying a different SD card, reformatting the SD card, resetting the camera, and/or returning it for replacement.