No sound on Instagram Story

Hi, I have noticed that recently after I have updated my iPhone 11 to ios 14, whenever I watch stories on Instagram, they do not play the sound. My phone is not on silent mode and I have googled every possible way to fix this including some suggested that to turn off and on the camera and microphone again, restarting my phone but to no avail. Can someone tell me if this is my device's problem or it is a bug in ios 14?

Thank you. :)