Why videos are playing partially in mx player?

[There is a light at the end of every tunnel]

I'm using Samsung galaxy A50. I usually download videos through UC browser and play using mx player. Most of the time it works fine.But some times videos are playing only partially and stuck at the middle of the streaming there on.(the screen goes black).but the same video plays normally using uc video player.I prefer to watch videos in mx player as it is convenient to add subtitles. Pls help me to sort out the issue.Thanx

 

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