Why is the 'Next' button in 508 Screen Reader mode not working for RichTree

Hi ADF Experts,
My JDeveloper version is 11.1.1.8. The 'Next' button in 508 Screen Reader mode for tables works fine.
However, it does not work for trees, I can see only the first 23 or so items.
Any ideas?
What am I missing here?
Regards,
-ab

There is no official JDeveloper version is 11.1.1.8.0!
If you use an internal build ou should post to an internal forum.
If you use an official version please tell us which on.
Timo

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