I also have the same issue. Timelapse saves a recording, but it remains at 0% when attempting to download. 
Posted message here: Wyze Camera v3 - How does timelapse work?
Device: iPhone 11 Pro
App: Wyze beta 2.29.0 (a22)
Camera: v3 (4.36.8.26)
I also have the same issue. Timelapse saves a recording, but it remains at 0% when attempting to download.
Posted message here: Wyze Camera v3 - How does timelapse work?
Device: iPhone 11 Pro
App: Wyze beta 2.29.0 (a22)
Camera: v3 (4.36.8.26)