Backup & Recovery :: Exact Fetch Returns More Than Requested Number Of Row

I have perform a failover and encounters the following problem.

ORA-01422: exact fetch returns more than requested number of rows

initially primary db: chicago
physical standby db: boston

after failover

primary db:boston
physical standby: NA

after recreating physical standby

primary db:boston
physical standby: chicago

over at chicago (new standby)

log_archive_dest_3=E:chicago_arc
over at boston (new primary)
log_archive_dest_3=E:oston_arc

over at boston when I connect to both boston as target db and recovery catalog

RMAN> list archivelog like 'E:CHICAGO_ARC\%';

List of Archived Log Copies

Key Thrd Seq S Low Time Name
------- ---- ------- - --------- ----
252690 1 10 A 22-AUG-11 E:CHICAGO_ARC10_759842424_1.ARC

over at chicago when I connect to both chicago as target db and recovery catalog

RMAN> list archivelog like 'E:CHICAGO_ARC\%';

List of Archived Log Copies

Key Thrd Seq S Low Time Name
------- ---- ------- - --------- ----
252690 1 10 A 22-AUG-11 E:CHICAGO_ARC10_759842424_1.ARC

however at E:chicago_arc when I do a os check

C:Documents and SettingsAdministrator>dir /w E:chicago_arc

Volume in drive E is New Volume
Volume Serial Number is C874-DD6D

Directory of E:chicago_arc

[.] [..] 100_759410562_1.ARC
101_759410562_1.ARC 102_759410562_1.ARC 103_759410562_1.ARC

[Code]....

26 File(s) 9,077,989 bytes
2 Dir(s) 2,650,337,280 bytes free

there's more files than indicated by rman

also at both chicago and boston

I have the following error:

RMAN> debug on;

RMAN-03036: Debugging set to level=9, types=ALL

RMAN> report obsolete;

RMAN-06524: RMAN retention policy will be applied to the command
RMAN-06511: RMAN retention policy is set to redundancy 1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of report command at 08/24/2011 23:12:15
RMAN-06004: ORACLE error from recovery catalog database: ORA-01422: exact fetch returns more than requested number of rows

RMAN> debug off;

Debugging turned off

here's the trace files I logged

DBGRCVMAN: EXITING listBackup with exception: ORA-01422: exact fetch returns more than requested number of rows
DBGMISC: krmicomp: error 6004 signalled during compilation [23:12:15.358]
DBGMISC: ENTERED krmkmrsr [23:12:15.358]

[Code]...

How should I resolve this issue?