8024F stack shows strange health info after FW Update to 5.1.0.1

Hi,

a two member 8024F stack shows strange health status after the update, although the stack seems to be fine and working. 

Take a look at a sniplet from show tech-support (look at the end). It clearly shows no stuff for the second unit. Also in the web interface it shows no stuff for second unit. At the power area it even says ERROR.

Special note: YES, the CPLD update was performed successfully on both units using local Console cable after the 5.1.0.1 update.

Is this a bug?

I already performed the whole firmware update once again (plus bootcode update) and i also tried swapping unit numbers and back again. no luck. i never ever seen something like that. 

Best regards,

Joerg

Temperature Sensors:
Unit     Description       Temperature    Status
                            (Celsius)
----     -----------       -----------    ------
1        CPU               31             Good
1        MAC               40             Good
1        Left PHY          31             Good
1        Right PHY         30             Good

--More-- or (q)uit

Fans:
Unit     Description    Status
----     -----------    ------
 1       Fan 1          OK
 1       Fan 2          OK
 1       Fan 3          OK

Power Supplies:

Unit  Description    Status     Average     Current          Since
                                 Power       Power         Date/Time
                                (Watts)     (Watts)
----  -----------  -----------  ----------  --------  -------------------
1     System       OK           86.6        86.9
1     Internal(R)  OK           52.3        52.5      06/19/2013 10:22:16
1     Internal(L)  OK           34.2        34.4      06/19/2013 10:22:16
2     System       Error         0.0         0.0