I've been working on a new product for our company & have various designs (1 thru 8) within my ass'y. everything is still up in the air as far as design of the product so I've been leaving all of my components as virtual components. my problem is SW has been reusing file names (Part1, Part2, etc.) & if I don't catch it, it's causing errors in previous designs. this morning makes the 2nd time & 3rd component it has happened on. I should also say that this is the only ass'y I've encounter this problem & I've been using SW2017 for approx. 2 months. I don't know if it has anything to do with it or not but the way my ass'y is configured is each design/configuration suppresses new components that are unrelated to that design. thanks in advance for any input.