Yoosee App's play back doesn't work

[sarmed emad]

Hello

When I put the SD into the camera, the camera starts recording normally and the saved clips appear to me in the PLAY BACK option, but when I want to watch it it does not work.
But the first record (30 minutes) is playing normally but the other records doesn't work . i bought another sd but the problem didn't fix , format the sd didn't work..

 

[Fiast]

I have the same problem.
My camera yoosee PTZ 1080p with firmware 21.1.0.41 (latest version for this camera) I cannot connect to online stream but the record is saving on the sd card, I cannot format the sd card from yoosee app, I get an error, when I format the sd card from laptop - it works fine, while free space on it will not be about 700M, after that online stream is not opening. If i disable recording to the sd card - online stream is opening well.
I have another camera yoosee PTZ 1080p with firmware 21.1.0.43 - and have the same problem.
This problem appears from version newer than 21.1.0.8.
Firmware 21.1.0.8 works fine - all ok, how to restore the older version? Or may be yoosee will fix the bug at 41, 43 version and publish new good working version of firmware????