This has never occurred before: I have brought in location graphic and hit the “view in Google Earth”. It then launches Photoshop and of course does not open. Fixes?
It sounds like Photoshop has commandeered the file association. You can reset it.
That was my suspicion. So far I have not had any luck with it, but I have not used it before.
I did a search and found the .kmz file, when I used “open with” Google Earth, it seems to have restored things.