Experienced the same and my adr status still says we need additional document we will contact you soon ,, and in my case also the status chng happened around the tym my gcms were generated but the worrying part here is that the status hant chngd till date i ll also be completing 180 days in another 25 daysI had the same experience. I called IRCC. The additional documents changes if we order GCMS. It’s an internal status. Nothing required from us.