It is definitely normal for V2.
We run ADSM for AIX V2.
I asked IBM about this behaviour some months ago, and was told it is
working as designed.
When you change the time on a schedule, it becomes a "new" schedule.
So there are no recorded events for it.

        ----------
        From:   Boireau, Eric (MED-Cap
Gemini)[SMTP:BOIREER AT euromsx.gemse DOT fr]
        Sent:   Wednesday, January 28, 1998 5:50 AM
        To:     ADSM-L AT vm.marist DOT edu
        Subject:        Losing schedule event

        Hello,
        I have note a pb with ADSM V3 on NT. If I change the schedule
start time
        for an event I loose all previous event.
        For example :
        I have an event which start at 08:00 AM, with big startup
windows size.
        At 10:00 AM I do a "q event * *", I can see this schedule (Node
which
        are started, completed or pending).
        Now I change for this schedule the start time, that I move to
10:30AM.
        Then a I lose all the previous event for this schedule (also
yesterday
        event).

        It is normal ?

        Thanks.

        > g          GE Medical Systems 
        > __________________________________
        > Eric Boireau
GITS
        > Unix / NT  System Engineer
        > 
        > GE Medical Systems S.A
        > 283, rue de la Minière 
        > 78533 BUC Cedex France
        > Tél: (33) 01 30 70 39 51,  DC: 8*644 3951
        > Fax: (33) 01 30 70 39 20, DC: 8*644 3920
        > mailto:boireer AT euromsx.gemse DOT fr
        > 
        > Salutations / Best Regards
        >