Serious issue V1.0.1.70_1.0.30 on RAX80 for connected USB drives

Over couple of months ago, I updated FW from V1.0.1.64 to V1.0.1.70. Previous version was stable but since I updated the router I started to have issue while playing media from connected USB drive.

While playing a video file, the connection get disconnected. Wifi running fine but USB loose connection to drive. I have to restart the router for the connection to get established again.

I contacted support and they suggested I return the old FW. I did that and everything return to normal.

However, yesterday I thought the issue with FW should have been fixed by now. Did update the FW with latest one, but still same issue again. USB drive get disconnected after couple of minutes when start playing any video.

Note, I tried to play the video through DLNA, FTP and nfs share. All showing same behaviour. I also tried via LAN connection but same issue.

Is there any plans to fix this in future FW?