Hi, everyone

I have recorded several one-minute trials. After processing online, only a few seconds have been processed. Has anyone encountered this problem? and How to avoid this. Additionally, i noticed that mtp angles of some running trials are 0, and some are not. Any potential reasons for this?

Has anyone tried to use zoom in or out function of iPhones during capturing? How does it affect the captured data, and will it enlarge the capture field?