ObjectID missing in DP1 Source tables?

Dear all,
I am extracting AGN lightcurves from DP1 data, and I want to experiment with both PSF and aperture magnitudes. As far as I understand aperture mags are stored in the Source tables, but it seems the ObjectID is missing, so I would need to cross-match by position every single source in every visit to build the light curve. Is this a DP1 limitation and will it be fixed in DP2?