Cannot use racadm to configure LCD on IDRAC8

I have a new R730xd wit IDRAC8 and firmware 2.40. I was trying this:

/admin1-> racadm help System.LCD.QualifierTemp
QualifierTemp             -- Specifies the Ambient temperature qualifier
Usage                     -- C,F,Default- C
Required License          -- RACADM
Dependency                -- None

But:

/admin1-> racadm get System.LCD.QualifierTemp
ERROR: Invalid object name specified.

I also cannot set it:

/admin1-> racadm set System.LCD.QualifierTemp C
ERROR: Invalid object name specified.

I have the same problem with the other System.LCD objects.