Foren / Cotonti / Support / Problems while Parsing to Template

Hi folks,

i got another Problem here and its driving me nuts.

I have a plugin that does this:

$t->assign(array(
'ACTIVE_ACCOUNTS' => $activeAccounts,
));

$t->parse('MAIN.BBMCLIENTS');

and a Template that does this:

    <!-- BEGIN: BBMCLIENTS -->
    kghjkh
    <!-- END: BBMCLIENTS -->

so far so good!
but i dont get anything out of it?! any ideas?
BTW. all others in the plugin seems to work AND in addition if i take BBMDOCUMENTS as target what is already deleted in the template i still got the old content displayed but not the kghjkh

and yes i deleted server cache & internal cache and deactivated the system cache!