Just to update (since I originally reported this) - the workaround in comment #12 (https://bugs.launchpad.net/inkscape/+bug/498141/comments/12) fixes the problem.
I'm not administrator on the affected machine, so I can't remove any profiles for testing, but I've attached all of my profiles in windows\system32\spool\drivers\color\ if it helps.
Just to update (since I originally reported this) - the workaround in comment #12 (https:/ /bugs.launchpad .net/inkscape/ +bug/498141/ comments/ 12) fixes the problem.
I'm not administrator on the affected machine, so I can't remove any profiles for testing, but I've attached all of my profiles in windows\ system32\ spool\drivers\ color\ if it helps.