C3D integration

Hello

Quick question, probably Vickie will answer :-) but anyone else is welcome to provide an answer

Under acad 2018, when opening the file from pw........... then trying to insert a block, the integration does not redirect us to PW but the local drive.

Same when RMB on a Xref  in the model space and select open  then trying to insert a block we have the same behavior.

Is there  a way to force the integration catch the insert bloc no matter which opening method is use?