When LSVCHK detects a change in BITEARN NODES the tables are regenerated. This
change can affect node information like file formats and NADs. For performance
reasons LISTSERV stores  such informations in GLOBALV NODEINFO.  This can lead
to incorrect results. For example the userid of a NAD has changed. The GLOBALV
variables  still contain  the old  id  and this  is what  LISTSERV uses  until
rebooted.
I suggest that the Automatic Nodes Generation also drops the NODEINFO group.
Christian