Tab5 does not display module content

I am trying to have tab5 working with a module. I would like to display the content of a NewGK5 withing tabs. Thus I added a tab1 position (see pictures) in tab5. But nothing show up.
Am I doing something wrong ? Please see pictures.
Thank You

Hello,

I've fixed your problem by disabling the usage of default CSS styles in the module (it is unnecessary as your template has built-in styles for this module).

I have the same problem with the same template - Storefront J2.5 - nothing appearing in TabsGK5. I made a Virtuemart Products module, gave it the tab1 position, but nothing shows. In the Tabs module advanced settings "Use css" is set to "force disabled". Is this correct?

Sorry - I fixed this already. No need to reply.