Hello Thomas,

you do not need a specific version of the module instance for mobile devices.

You have to either:
- set the option 'wrap' to 'yes' in the 'layout' tab under the 'text' section (this will wrap the text under the picture when space is lacking). 
or
- if you want the text NOT to wrap on large screens, use CSS to wrap only under a certain window size (use CSS media queries and .lnee .newsinfo { overflow: unset!important }).

This way, you only have one module instance to keep track on AND your cache issue is resolved.

Hello Thorsten,

it seems like you put the modules in a position of your template that hides on mobile. The container of the module has a class 'hidden-xs', which hides anything under 768px.
That is probably why you don't see your modules. 

Ok Thorsten.

If that is a cache issue, it may just be a problem of configuration of your Joomla site or a cache issue I am not aware of (you may have an outside service that caches your pages). Have you tried adding another module (like the core 'latest news' module) in the same template position? Does it show?

Also, my first solution still stands:

- use the desktop version and show it ALWAYS (do not hide it under 768px)
- use the 'Wrap' feature or add manual CSS to that module instance to ensure the text wraps around the picture when container sizes become smaller.

If you need help with manually adding CSS to the desktop module instance, I will be happy to help.