In versions previous to Indesign 16.0, when saving a file you would be saving your file from where you opened your file. Now it saves from the most recent path you saved from. I don't think this is a "feature not a bug" but a royal pain. As someone who works on 8-10 different projects sometimes in a day, it can get very annoying to do a quick save and finding it is in another project all-together. PLEASE. Fix this.