Unable to make Sheet Index Open For Editing in dgnws - Sheet index is currently in use by: , Computer.

Hi,

I am trying to edit a sheet index in our organisation's workset template dgnws but it won't open for editing and tells me it's in use (by me).

I can open it for editing when I am in a dgn but not in the dgnws. I have seen a colleague in a different organisation edit it in the dgnws no problem.

Version 10.06.00.38

Any help appreciated,

Regards,

Les