please note - I am trying my best to help all of you guys out with the bugs , but I myself I'm working alone on this project so give me some time and my device condition is bad , only 75% of the touch screen recognizes my touch since my digitized is damaged , as well as my battery doesn't seem good
I think i found the reason for the problems ..
Which are:-
Stock camera app or 3rd party cams not able to record videos.
File manager not able to access external sdcard.
Apps not able to write on internal storage.
Permissions are reset on reboot every time. ( may be due to cache problems).
Images or videos (downloaded) on internal storage are not shown in the galary.
Only google photos is able to show media on both internal storage and external sd card simultaneously.
Internal storage now shows internal shared storage.
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REASON WHICH I THINK IS CAUSING THIS.
IN nougat rom, by default the external sdcard is taken as adoptable and not portable.
On removing the external sdcard,
The stock camera app says cannot access sdcard.
Somehow now footej camera app is able to record videos and click images effortlessly but the output of video is slow and constant pauses. File manager is working as earlier , but still shows internal shared storage.