I have Photoshop Elements 14 intsalled on an iMac on OS 10.15.5. I've been scanning pictures to my desktop and importing them from there into PS. Can I scan pix directly to PS instead? (When I open Elements Organizer, there's no option either under File>Get Photos and Videos or under Import for getting pix in from a scanner rather than, say, a camera or an iPhone/iPad.)
What happens in Apple Image Scanner? It should work in both places, but Image Scanner is worth checking.
Also, check the System Report to see if the scanner shows up under Hardware (Apple Menu > About This Mac > Overview > System Report... > Hardware).
You may need to reinstall the drivers for the scanner. What's the make and model?
One quirk I have about my Fujistu scanner is that it goes to sleep. Photoshop, Image Scanner, and System Report will only see it if it's awake. The ScanSnap software can wake it up and pressing the power button can wake it up, but none of the other applications can.