iPhone 13 Calendar alerts vibrate only, no sound

Help please driving me up the wall 🤦‍♀️I have iPhone 13 ios 26.4 my calendar vibrates only no sound I’ve checked sound haptics notifications focus when pressed gives 1 hour, until this evening, until I leave this location, until the end of this event🤷‍♀️do not disturb does not have turn off only what else can I do 🤷‍♀️.