Unable to open Photoshop from LrC

[lewisb77015872]

Suddenly unable to open Photoshop from Lightroom Classic. Error Box appears. When opening Photoshop direct from the icon, it does not recognise Lightroom pictures?

All Apps up todate versions.

Please advise on best course of action to rectify issue.

Best regards,

[davescm · Accepted solution]

First go to Lightroom Classic's Preferences and under 'External Editing' check which version of Photoshop is set. It should be Photoshop 2026. 
Dave