Hallo Robert and Jimmy,
Progress: I have definitely determined that my grid code is not the problem. Rather, the grid issue is caused by some other code called by the Parent form. When this other code is commented out my grid displays its RecordSource correctly.
Debugging that code is for another day when my mind is fresher.
Vielen Dank für Ihre freundliche Hilfe,
Red2
HMG-specific GRID syntax help needed
Moderator: Rathinagiri