Can not Edit In or open Photoshop from newly updated Lightroom Classic

​@Francefoto I’ve tried this and I can’t reproduce this on my machine.

Unfortunately you haven't given us any information about your system. Therefore, all proposed solutions are a look into the crystal ball.

What exactly you’re trying to do? What do you like to get and what do you really get?

Please describe the steps you’re doing, so we can try to reproduce.

Do you use Smart Previews in Lightroom and in the case are the original files are available?

If you work with a single image does this work?

Which operationg system and which version of Adobe’ applications do you use?

If your system up-to-date?

When the 'link' between Lightroom Classic and Photoshop has issues, the first step is to try this: Use the Adobe Creative Cloud Application to uninstall Photoshop. When asked, keep preferences! After this reinstall Photoshop again.

If this doesn't help the nest step is to reinstall both apps Lightroom and Photoshop. Please follow the steps below:

1. Open the Adobe Creative Cloud Desktop Client and uninstall both Photoshop and Lightroom Classic. When asked, keep preferences! 

2. Install Photoshop first and then Lightroom Classic. The right order is very important here!

If this doesn't help try the reinstallation with removing the preferences also.