There is a bug introduced in autofs which breaks maps which are not stored in /etc. There is a patch but no official update yet. A patched version of autofs is available here: http://www.chrysocome.net/downloads/autofs-4.1.3-187.c4.1.i386.rpm
See also https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=201084 https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=202860
John.