Interesting, thanks for testing. I got an email from invision today, you probably too. They reverted some of their matching artboards experiments and updated Craft. When renaming artboards or the sketch file itself, things get a bit more complicated, see here: https://support.invisionapp.com/hc/en-us/articles/115000635806
Regarding renaming artboards they say:
Once you’ve synced an artboard to InVision, a one-to-one sync relationship is created between the artboard and your screen in InVision so that you can rename that artboard in Sketch, and it will continue to sync to the original screen.