Event wierdness : Events & Events (m)

Tick Events (pg)
shows up,
tick Events (m)
shows them to,
then untick Events (pg)
and nothing shows up even with (m) ticket on

um... why do we have a option that doesnt work , before this used to gray out when you didnt have PG on, now you can choose M but it wont show unless PG is on, but then again its been around abit now.