The hint about refreshing is great. Actually, I took a look at calendar's .desktop file and links to icons there are being switch as they should be. It is indeed the calendar icon/shortcut that is not being 'refreshed'.

Now, is there any way to do a refresh from the command line (and not using some apps/mods)? If so, Profilematic could simply be set to do a refresh say 5 min after midnight = problem solved.