cannot open file for edit in VSE

Hello All,

i copied a design from a colleague but when i am trying to open any of the schematics its only giving the option to open it in read only mode.

I have deleted the lck files and have write permissions in the work area as well as this copied design.

When i go to Edit -> Access Permissions in the Library manager  i see the below.

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can anyone please advise how can i open the schematics in EDIT mode?

I have IC6.1.7 

thanks

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Clik here to view.