Critical alerts push notifications banner style

We are using critical alerts in our application. we observed that even if banner style for critical alerts notifications is set to "Temporary" in settings, when received on device they are "Persistent" (you have to tap/swipe or open any other app, then only it will be gone). It's not dismissing automatically as behaviour expected for "Temporary" banner style.

Is this expected, in case of critical alerts? or am I missing anything.

Critical alerts push notifications banner style
 
 
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