Double click any Illustrator file, opens file in Photoshop not illustrator

[Charmster]

Updated Illustrator and Photoshop to 2019 two weeks ago. Just Updated OS to Mohave. This is when the problem started.

[Guest]

Hi

You posted this in the Photoshop forum, but I think it's more of an Illustrator file association issue

Take a look here

How to fix broken file type associations for Creative Cloud apps

[D.A.R]

Select any of the Illustrator Files and Press Cmd + I for the Info box.

Change the "Open with:" to Illustrator. Then click Change All...