Could you please check when you go back to Lightroom you do not have the Left and Right side Panels hidden(Set to Auto hide).
Press TAB to un-hide the Panels(left and Right)
Press Shift+TAB to unhide All Panels
You may refer Adobe Photoshop Lightroom Help | Workspace basics
For us to better understand the issue Post a Screenshot of Lightroom when you think it looks like a new Program.
Let us know if that helps
when I look at the last imported photos is says "0"
when I look as collection set highlights collections "0"
when I try and find any of the collections, collection sets, smart collections, etc that were there prior to opening photoshop they are missing
- How exactly do you open Photoshop?
From Lightroom(Edit in>>Photoshop) or from Applications
- Are you using a MAC or Windows Computer?
- Please make sure that you have same catalog is checked(see under File>>Open Recent) before and after you open Photoshop.
i am using a OS Yosemite operating system 10.10.5
ON an iMac desktop with an i3 processor
i did check under the tap when I reopened Lightroom and chose in the upper left you can right click and switch between Lightroom mobile, Lightroom, and personalized.
i Switched between all of these and still no catalogues or collection sets or user defined presets
Please try Resetting Lightroom Preferences
- Backup Lightroom catalog Adobe Photoshop Lightroom Help | Back up a catalog
- Hold down Command,Option, Shift while starting up Lightroom and select Yes.
Let Me know if that helps
Open Lightroom and then click on open recent and check all the catalogs that are available for you.
Also try searching for .lrcat file in you finder and open the catalogs available for you.
This is awesome!!! Thank you so much for all your help and for fixing my issue. I am 100% happy with this help, support, outcome and so grateful for an amazing resolution!!!