Seed consume is failing for agent(s) that have not been added to replication.
In most cases, the target core under the replication tab will show the core name but no agents. The source core will show under the replication tab the core name and replicated agent(s). The status may be showing deleted. At some point, the replicated agent(s) on the target core have been removed after the seed was complete or while in progress.
1) On the source core, navigate to the replication tab and remove agent(s) that are showing status deleted
2) On the source core under the actions icon, select Add Machines to add agent(s) back to replication
3) On the source core, select the added agent(s) and paused replication. If replication starts before pausing, cancel the job under Events tab and pause the agent(s)
4) On the target core, navigate to the replication tab | Actions/Settings Icon |Consume