EC2133

Like EC2132, except that in this case the user ID matches, but the primary group ID requested by eMake is not available to that user on an agent host.

See above.

The primary group currently in use on the eMake client is not available to the same user on an agent host.

Either grant membership in the group on all agent hosts, or change to a different primary group on the eMake client. But in the latter case, if you keep the original primary group in the supplementary group list, then you will probably encounter EC2134.