When I already have Indesign open, I try clicking (within windows file explorer) on an Indesign file in an attempt to open it. When I do this an attempt is made to open another instance of Indesign instead of opening the file with the instance of Indesign already open. I only have a license for 1 station of Indesign and so the new instance of Indesign crashes. The result is I am unable to open the Indesign file this way when always before I was able to.