Orca Minor annoyance - has problems reading tree tables and other tables

[Krister Ekstrom <krister kristersplace ws>]

Hi folks,
Another little thing i've noticed since i switched to Orca v2.17.5 is
that arrowing down when in a tree table or other table, Orca reads the
first few items, then says "tree table" and when continuing to arrow
down in a table doesn't produce anything, it's silent. If i arrow up one
item and then down again, i hear the silent item and then the next item
down as i arrow down but then the process is repeated again. It looks to
me as if Orca has a hard time tracking focus in tables.
Anyone else encountered this?
-- 
/Krister