Snapchatvideo glitch

im having a problem with my Snapchat, whenever i record a video then add it on my story a green line will appear. I tried reinstalling it but its not fixing the problem. I've been searching on how to fix it for a month but still there is no solution. if i flash a new custom ROM will this fix the problem? my phone is Cherry Mobile Cosmos One running Android 4.4.2 Kitkat
I really need help :( if you know the solution pls let me know :(
Hoping for your response. Thank you

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