Call Drop When I Check Notification During Call

Hello,

Im using iPhone 13 and facing an issue:

Lets say I am talking to someone on phone call/messenger call/whatsapp call and I received a notification and I just quickly checked it. When I check the notification the call automatically drops.

Im not sure why this has been happening all the time I check notification during a call.

Is there anyone facing the same issue? Or anyone knows how can I fix this?

Thanks in Advance