colord messages and warnings in RHEL /var/log/messages

Issue

• I'm getting warnings in /var/log/messages:

  Apr 22 16:44:02 my-host-name colord: Profile added: hp6-Gray..
  Apr 22 16:44:02 my-host-name colord: (colord:2399): Cd-WARNING **: failed to get session [pid 1556]: Unknown error -2
  Apr 22 16:44:02 my-host-name colord: Device added: cups-hp6
  Apr 22 16:44:02 my-host-name colord: Profile added: hp7-Gray..
  Apr 22 16:44:02 my-host-name colord: (colord:2399): Cd-WARNING **: failed to get session [pid 1556]: Unknown error -2
  Apr 22 16:44:02 my-host-name colord: Device added: cups-hp7
  

• The following messages appear in the journal entries for colord.service:

  Aug 16 15:09:37 my-host-name colord[2146]: failed to get session [pid 38748]: No such file or directory
  Aug 16 15:09:37 my-host-name colord[2146]: failed to get session [pid 38748]: No such file or directory
  Aug 16 15:09:37 my-host-name colord[2146]: failed to get session [pid 38748]: No such file or directory