Naming an artboard any name containing a forward slash in Designer 1.8.5 on Windows 10 will create a new folder due to path concatenation. I'm unsure whether this is expected behaviour (in terms of organisation of different parts of a project) or an actual bug. I've attached screenshots showing the setup to reproduce this and the results, but effectively an artboard or slice named "a/b" will export to "$EXPORTFOLDER/a/b.png", instead of either substituting the seperator for another symbol or removing it.
