On my site I have two calendars: one sitewide and one for organic groups. The OG calendars' paths are node/%/calendar/month, node/%/calendar/week etc.
Everything works the way I need it to apart from one thing; on my sitewide calendar the Month display provides links to each day on which there is an event. These link to /calendar/day/YYYY-MM-DD. That works fine. However, on my OG calendars these links go to node/%/calendar/month/DDDD-MM-YY which obviously doesn't have the desired effect.
Strangely, if I enable the week numbers these links go to node/%/calendar/week/YYYY-WWW just as they should.
Has anyone encountered this before? Is this an issue with the theme template for the Month display? (I haven't altered it yet).
I'll be having a look there before I hand the site over but for now I have other things that need work.