Adobe, here's a pro suggestion for UX:

For each of the Creative Cloud apps that can be customized, under the app's folder in %APP_DATA\ROAMING% and Mac equivalent, create a subfolder called "Customization."

Then under the Customization subfolder, create folders for the features that can be customized. Typically these are Workspace, Menu, Keyboard and sometime others.

It would look like this:

%APP_DATA\ROAMING\<Adobe Product>\Customization%
%APP_DATA\ROAMING\<Adobe Product>\Customization\Workspace%
%APP_DATA\ROAMING\<Adobe Product>\Customization\Keyboard%
%APP_DATA\ROAMING\<Adobe Product>\Customization\Menu%

I'm thinking that using AI, you could even come up with the coding.

Yes, it still happens. I finally figured it out. The problem is that the location of workspaces and custom keyboards are in entirely different locations for all the Adobe Creative Cloud products.

ADOBE. CREATE A FOLDER AND SUBFOLDERS WITH THE SAME NAMES AND SAME %APP DATA\ROAMING% LOCATIONS FOR EVERY FRIGGIN' APP THAT CAN BE CUSTOMIZED.

In any event, if you can find your previous customized workspace and all, just copy it to the custom folder in the updated version. It takes less time than recreating it, but it's still an inconsiderate pain in the butt from amateur UX designers.

ADOBE .... COORDINATE YOUR DANG CREATIVE CLOUD APPS

Eric, you are referring to Beta, don’t you?
This sucks.
This happens every minor update, when it gets updated from, say, 28.3 to 28.4.
For some reason Ai does not transfer them automatically form a folder to folder and build Preferences anew.
All you files though are save, here:
C:\Users\[username]\AppData\Roaming\Adobe\Adobe Illustrator 28.3.0 Beta Settings\[locale]\x64\
put in different folders there, or directly in the root.
And you can restore them, putting in 28.4’s folders

IT DOES NOT MAKE IT LESS PAINFUL!

ATTENTION ADOBE ENGINEERS: YEAH, THIS IS ALL CAPS BECAUSE I AM LIVID.

I spend hours customizing my workspace and keyboards. I export the customized spaces to be able to use them.

THEN WHEN ADOBE UPDATES ILLUSTRATOR, IT ERASES MY SETTINGS AND TELLS ME MY SAVED EXPORTS ARE INVALID WORKSPACE FILES.

In the update to 28.4, all custom keyboard settings disappear and cannot be recovered even from the saved workspace. The KYS files are nowhere to be found. They are not saved in any logical location.

Not in workspaces.
Not in the App Data folder under whatever indecipherable folder name where workspaces are stored. Nope. God knows where the kys files are stored.

Try finding the kys files on Adobe NoHelp menu.

THIS IS REAL EASY, ENGINEERS ....

STOP ERASING SETTINGS WHEN UPGRADING. PUT IN A COMMAND TO COPY THE CUSTOM SETTINGS FROM THE OLD VERSION AND PASTE THEM INTO THE NEW VERSION.

BETTER YET, GET A NON-ENGINEER WHO HAS TO USE ILLUSTRATOR TO DEMONSTRATE HOW TO MAKE A USABLE FOLDER TREE SO PEOPLE CAN FIND WHAT THEY NEED.

How difficult can this be to save the workspace settings in APPDATA or anywhere really? Perhaps you can make the settings exportable and importable. Then, when you update, at least we can re-import the workspace layout we depend on and have worked for hours to configure.

There is a similar bug that affect ordinary versions of Illustrator, when updating leads to resetting preferences:
http://illustrator.uservoice.com/forums/601447/suggestions/31942219

Agreed, its such a minor inconvenience but it definitely adds up. Particularly when updates are coming through every few days and I have re-made/re-saved my custom workspaces 15 times. Its a small issue but its this mixed with things like the Pantone debacle really just eroding my faith in Adobe's ability to keep the User experience in mind.

That is all.