Here is the explanation of my problem.I am using a detail renderer inside a ADG, which appears when clicking on a certain column.
This is done is AS3 (I mean not with mxlm tags), using the ADG rendererProviders property with an item renderer passed to a ClassFactory.
This is working ok, until a certain point..
Indeed, the grid contains many columns, with images item renderers and when I am horizontally scrolling through the column, a display bug make all the ADG content disappear.. Headers remain but all the data are gone. A user action that may update the data has to be done to make the data come back of course.
This bug seems to be known by a few, but unfortunately all the solutions are useless in my case (setting the property horizontalScrollPolicy = 'auto' for each column for instance).
After some research it appears that the line responsible for making the whole thing vanishing is the update of the variable rendererProviders: