I cannot create a PDF from scanner. I think it may be related to the latest MAC OS upgrade to 26.5.1 I

I cannot create a PDF from scanner. I think it may be related to the latest MAC OS upgrade to 26.5.1 I get the first screen where I can select a scanner. I have a Brother and an HP scanner. Selecting either one gives the same result. When I click the Scan button a new window is opened but it is grayed out. It is blank except the Hide Detail, Overview and Scan (all grayed out)