audio & video recording bug on 5.0.1 . pls help

[mahir555]

hi people..
my s4active updated to official 5.0.1 rom
since that i got a 1 second gap while recording any audio or video everywhere on the device ( recorder- camera-whatsapp-all other apps that can send recorded media files)
it happens on the 5th second of any audio-video recording and on videos it cause dis-synchronization between audio and video..

any help..