[TYPO3-german] Fluidcontent / Flux FCE, strange behaviour creating/pasting content inside grid-elements

[Gabriel Kaufmann | Typoworx]

Inside Fluidcontent/Flux content-containers such as grid-containers it 
seems to be impossible to create new content using the "add content 
symbol" nor existing content can be pasted.

_Symptoms:_
New content is created inside the page but not shown in any column of 
the page or the grid-element it should appear after creation.

Pasted content is not displayed inside the grid-element (but still 
silently exists in the page shown by "list" module.

Only dragging content inside the grid-element currently works!

This is a very annoying and misunderstandable behaviour as the 
create/paste function-icons are shown.


Does anyone has an idea how to fix this?

    best regards

    Gabriel Kaufmann