Can you please help me
Best answer by CharlieT
I'm sorry to hear that regarding your video issue and thank you for bringing this into our attention.
I would recommend you to try a wipe cache for the phone and also clear cache and data for the apps and see how it goes.
If the issue remains, I would recommend you to contact the facebook support for more details regarding the video resolution and how to properly upload videos or share them via facebook and whatsapp.
Hope it helps.