@m5stack
Could you please correct the UnitCamForUIFlow firmware as follows?
Set the WROOM-32 clock to XCLK=8MHz and the ov2640 clock to twice the current clock.

This solution has been found by Sohtamei in the following thread;
https://community.m5stack.com/topic/3649/unitcam-hw-issue-cannot-stream-video/8

Thanks a lot.

@m5stack I'm having this same problem. I think it is probably caused by a slow Wi-Fi throughput issue with UnitCam.
A solution to this problem has been found by Sohtamei in the following thread;
https://community.m5stack.com/topic/3649/unitcam-hw-issue-cannot-stream-video/8
On the UnitCam, set the WROOM-32 clock to XCLK=8MHz and the ov2640 clock to twice the current clock.
Could you please reflect this solution in the UnitCamForUIFlow firmware?