When performing an Explore and Correlate on a RACF endpoint, it doesn't return the Users nor the Groups.
Cause:
The root cause is the sizelimit setting. The sizelimit is set too small, within the RACF's slapd.conf file.
On the RACF endpoint, edit the slapd.conf file as follows:
###############################################################
# Limit results to 500 objects per search. Set to
# -1 to allow an unlimited number of objects to be
# returned
###############################################################
sizeLimit 500
Instead of sizeLimit 500, change it to: sizeLimit -1, then save the change.