I've tried replacing scrollableDataTable with a extendedDataTable but it has the same behaviour: if the table is in a modalPanel the columns widths cannot be modified using the mouse.
Is this a known issue? Can anyone else replicate this problem? Should I open a bug about it?
I can confirm this for scrollable table. But extended table works fine under 3.3.1 snapshots. (b.t.w. in 3.2.2 extendedDataTable was in preview state)