Tree upsets SQL report on same page

I have placed a tree on the same page as an SQL report and every time I collapse or expand a tree branch the report comes back with :-
  failed to parse SQL query:
  ORA-06502: PL/SQL: numeric or value error: NULL index table key value
The URL given when a tree action is taken looks like this "f?p=139:10:7279140003773292621:CONTRACT,1"
I have removed the tree and found that if I call the page ( now without a tree at all, just an SQL report ) with the URL above the report still fails. Here is the SQL for my report -
select E.EMP_ID,   E.LAST_NAME||', '||E.FIRST_NAME Name, E.MOD_AGS, E.AVAILABLE4RECALL, M.FIRST_NAME||' '||M.LAST_NAME MANAGER_ID, E.ENABLED, '(' || S.ABBREVIATION || ')' Abbreviation
from EMPLOYEES E, EMPLOYEES M, STATES S
where E.MANAGER_ID = M.EMP_ID and E.STATE_ID = S.STATE_ID
nothing too fancy there? Can I have a tree on the same page as an SQL report???
I have tried re-creating the page again from scratch and the same thing happens.

I'm having a similar problem.
I have a tree on the same page as an Easy Report. When I expand or collapse the tree I get:
failed to parse SQL query:
ORA-06502: PL/SQL: numeric or value error: NULL index table key value
in the Report Region.
If I don't set a Sort on any column in the Report Attributes, then I don't get the error.
The report uses a bind variable. Here's the debug:
0.13: show report 5
0.13: set report template: user defined template
0.13: determine column headings
0.13: activate sort
0.13: is numeric ?
0.13: parse query
0.13: binding: ":APP_CURR_LOC_ID"="APP_CURR_LOC_ID" value="14"
failed to parse SQL query:
ORA-06502: PL/SQL: numeric or value error: NULL index table key value
I'm using version 1.4.4.00.33.
Anyone got any ideas?
BTW, debug switches off when you exapand and collapse the tree.

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200 views and 1 reply? Come, come, Aces, you can do better than that!
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