[otrs] Pictures in public FAQ

Hello list, I am very pleased to see that the wysiwyg-editor in FAQ-Module 1.5.4 also deals with pictures and even picture uploads. This works very well in AgentFrontend. But when I change to customer or public frontend, the pictures are not visible and there neither is a placeholder for them. They are simply not there. Returning to AgentFrontend, thea are still there. Is it a matter of configuration or user rights? I'm using otrs 2.3.3 with ITSM 1.2.2 Thanks in advance Markus Nagel