Sharepoint online override behaviour

Hello All

What is actual behavior of sharing a file that is blocked in SharePoint online.

My policy allows override after blocking. Once I override the policy, the block symbol gets disappeared. However once i share it to the external recipient after 10 or 20 seconds it is getting blocked and block symbol is appearing. The recipient whom I have shared the file are not getting access denied error.

How long the override stays for a user, once we override the file in SharePoint? Kindly provide your feedback