Rebuild Smart Cache Group fails

For CiviCRM 4.6.0 on Joomla 3.4.1:
Receiving errors on both manual use and cronjob:
++++++++++++++++++++++++++++++++++++++++++++++++
Manual button in Groups:
[begin report]

@import url(/administrator/components/com_civicrm/civicrm/css/civicrm.css); @import url(/administrator/components/com_civicrm/civicrm/bower_components/jquery-ui/themes/smoothness/jquery-ui.min.css); Sorry but we are not able to provide this at the moment. is not of the type Int

Return to home page.

function toggle( element ) { var className = element.className; if ( className == 'crm-accordion-wrapper collapsed crm-fatal-error-details-block')

{ element.className = 'crm-accordion-wrapper crm-fatal-error-details-block'; }

else

{ element.className = 'crm-accordion-wrapper collapsed crm-fatal-error-details-block'; }

}

[end report]

+++++++++++++++++++++++++++++++++++++++++++++++++++

Scheduled Jobs (cronjob):
[begin report]

Parameters raw (from db settings): limit=Number optional-Limit the number of smart groups rebuild

Parameters parsed (and passed to API method): a:2:

{s:7:"version";i:3;s:5:"limit";s:56:"Number optional-Limit the number of smart groups rebuild";}

Full message: Finished execution of Rebuild Smart Group Cache with result: Failure, Error message: A fatal error was triggered: is not of the type Int

[end report]

++++++++++++++++++++++++++++++++++++++++++++++++++++