RT::Ticket::Reminders Unimplemented in HTML::Mason::Commands

I’m just deciding to dip my toes into 3.6.0. I’m setting up a fresh
tree, fresh database so I can play before getting too dirty. I still
have 3.4.5 on this box, but in a wholly separate path/database/etc.
Hopefully that’s not the problem.

Got 3.6.0 setup & installed, generally seems to be working.

Except…

When I goto “display” or “reminders” on a ticket I get:

error: RT::ticket::Reminders Unimplemented in HTML::Mason::Commands.
(/usr/local/rt3-infodesk/share/html/Ticket/Elements/Reminders line 13)

context:

492: else {
493: my ( $package, $filename, $line );
494: ( $package, $filename, $line ) = caller;
495:
496: die “$AUTOLOAD Unimplemented in $package. ($filename line $line)
\n”;
497: }
498:
499: }
500:

code stack:
/usr/local/lib/perl5/site_perl/5.8.8/DBIx/SearchBuilder/Record.pm:496
/usr/local/rt3-infodesk/share/html/Ticket/Elements/Reminders:13
/usr/local/rt3-infodesk/share/html/Ticket/Reminders.html:56
/usr/local/rt3-infodesk/share/html/Widgets/TitleBox:49
/usr/local/rt3-infodesk/share/html/Ticket/Reminders.html:57
/usr/local/rt3-infodesk/share/html/autohandler:279

You might think it to be an older version of HTML::Mason, but I’ve done
a full update of HTML::Mason (v1.33), plus when I installed, “make
testdeps” came back clean.

I’ve walked thru RT_Config.pm and don’t see anything obvious that I may
have missed.

Anyone have any ideas?

Thanks,
Steve