As awAJAX works in its own datasession and is released after each request, table can't remain opened from a previous request.
You experience means table was opened previously in the same request, then awAJAX attempts to re-open it.
What would be useful to know is: which form(s) are involved in your request and which request you're actually running.
Thanks,
Thierry Nivelet (FoxInCloud)
Never explain, never complain (Queen Elizabeth II)