i5/OS V6R1 not converting *SRVPGMs on "first touch"?

Hi, all:

One of our customers is in the process of converting from V5R3 to V6R1 ... (side-by-side upgrade; separate box.)

For some reason, they are getting this message in some job logs:

CPI5D20 Information 10 08/17/10 08:34:07.122556 QBNBIND QSYS *STMT QBNBIND
From module . . . . . . . . : QBNBLOAD
From procedure . . . . . . : QBNBLOAD__ProgramManager__Load
Statement . . . . . . . . . : 9
To module . . . . . . . . . : QBNBLOAD
To . . . . . . . : QBNBLOAD__LoadObject
Statement . . . . . . . . . : 5
Message . . . . : Service program SRVPGM01 requires conversion.
Cause . . . . . : Service program SRVPGM01 in library *LIBL requires
conversion because it is not in the format required. Converting a service
program to the current format may change the way it uses argument
optimization (ARGOPT). Recovery . . . : If there are problems with
ARGOPT, convert this service program, and then try the command again. Use
the Start Object Conversion (STROBJCVN) command to convert the service
program.

For some reason, they changed QFRCCVNRST to "1" (from the IBM recommended default of "3".) Yet, most of the objects in the library where these *SRVPGMs reside say "Conversion required . . . *NO". But for some reason, a few of them say "*YES" and they have *UNOBS for the Observable information.

I thought OS/400 and i5/OS was supposed to automatically convert such objects on "first touch" (or first use), as needed?

I told the customer to submit a batch job to run a STROBJCVN for the library containing these objects, and that seems to have resolved this issue. But, is this now necessary?

Is anyone else seeing this?

Thanks.

Mark S .Waterbury