I noticed that when I do not have Photoshop CC 2018 open already, I get an error when trying to open PSD files. It says that this file cannot be opened in Photoshop 2017. But that version has been uninstalled after the 2018 version was installed. I check the "Get Info" panel, and the default program for all my PSD files is PS 2017 with a generic icon. When I try to select PS 2018 from the drop down menu, it doesn't take and reverts back to 2017. I also notice that once I have PS 2018 open, and I am able to open a PSD file, there is no PS icon in the file name bar like usual. It's a blank document icon. I imagine this is related to the 2017 default app error. Please fix!