Workspace issue with InDesign CC 2015

[Guest]

We are using InDesign CC 2015 -- specifically, 2015.3, with full version of 11.3.0.34 -- in a Windows environment.

We have a Workspace, Site Basic, that is set to be run automatically when launching InDesign. And it does.

But when a user opens an existing document, then Workspace changes immediately to Essentials!

We copied the Site Basic Workspace as the Essentials Workspace, in hopes that even when an existing document was opened, the Workspace would be identical.

And that works fine except if the user has a Workspace named Essentials_CurrentWorkspace, in which case that remains used instead of Essentials.

We tried deleteing Essentials_CurrentWorkspace, then relaunching InDesign, but after doing so, when opening an existing document, InDesign crashes.

We also tried copying Site Basic Workspace as Essentials_CurrentWorkspace, then relaunching InDesign, but when opening an existing document, InDesign also crashes.

Has anyone else seen this behavior in this version of InDesign?

Does anyone have any thoughts of how to get around this behavior, so that whenever a user opens an existing document, the desired Workspace configuration is displayed, whether as Essentials or Essentials_CurrentWorkspace or anything else that will work?

[Guest]

Here is what I wound up doing to work around this issue:
Launched InDesign CC 2015 (version 13.3.0.34) with Site Basic as the workspace specified to show at launch.

Clicked on a different tab on one of the palettes and quit InDesign, thereby creating Site Basic_CurrentWorkspace.

Launched InDesign again, which showed the Site Basic_CurrentWorkspace configuration. Clicked on the tab that originally was selected and quit InDesign again. This resulted in Site Basic and Site Basic_CurrentWorkspace now being identical.

Copied Site Basic as Essentials and placed it in C:\Program Files\Adobe\Adobe InDesign CC2015\Presets\InDesign Workspaces\en_us, replacing the version of Essentials already there.

Launched InDesign again and opened an existing document, which immediately changed the workspace to Essentials. Clicked on a different tab on one of the palettes and quit InDesign, thereby creating Essentials_CurrentWorkspace.

Launched InDesign again, which showed the Essentials_CurrentWorkspace configuration. Clicked on the tab that originally was selected and quit InDesign again. This results in Essentials and Essentials_CurrentWorkspace being identical to each other AND to Site Basic AND to Site Basic_Current Configuration.

Copied these to a location on a file server.

Wrote a .cmd file that copies all 4 of these workspace files to the correct location for the user, then launches InDesign CC 2015.

End result: When a user launches InDesign CC 2015 via this command file, the Site Basic workspace is shown. When a user creates a new document, Site Basic still is shown. When a user opens an existing document, the Essentials workspace is shown instead, but since it is identical to the Site Basic workspace, the user has all the same palettes and other workspace configuration as desired.

Whew!