AdvancedDataGrid content disappearing when setting rendererProviders..

Hi All,
Thanks for the community support, really useful.
I am using the SDK 4.1.
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:
ie this.rendererProviders.push(_detailRendererProvider);
In the AdvancedDataGrid.as class, the property setter, after updating its value of course make 2 other intructions :
invalidateSize();
invalidateDisplayList();
It seems this is a bit too much for the DG to handle (note that I call this.validateNow(); after the rendererProviders update in my code).
Note as well that if I do not set :
this.variableRowHeight = true;
An error pops up from the class AdvancedDataGridBaseEx in the configureScrollBars method, doing :
var headerPosX:int = lastHeaderInfo.headerItem.x;
(headerItem is null)
So, end of the day, I am stuck..
Many thanks for your help, hoping it will arouse some lights..
Benjamin

hi, katrina S
I don't know how but for the past three days iTunes has been functioning correctly.
I removed al my music files from the library and put them back to their original folder; reinstalled iTunes and let it go from there. I've decided not to copy my music folder to iTunes as it's now working "correctly." I haven't made any playlists or made any online purchases since reinstalling as I'm wary of it all going haywire again. Thanks for your help. I'll keep you updated on this matter.
take care,
az

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