How to fix slave problems for license warning?

[Emblibrary]

I currently have Splunk on a central server and 3 other servers forwarding events to it. All the servers have been switched to a free license, however on the central server I'm getting a warning of "This pool contains slave(s) with 1 warnings". I didn't think it was possible to even set up slaves with a free license so I have no clue how to fix this problem, also doesn't help that Splunk won't tell you which server/slave is having the problems. I double checked all the server to verify that they were running with a free license and none were configured to be slaves. So any ideas of how to fix this problem?

[rsimmons]

The reason that your getting this error message warning of "This pool contains slave(s) with 1 warnings" is because you are using the same license on two servers. Splunk is aware that your trial license is in use on two indexing servers. Disabling the installation that is a duplicate and that will fix your problem.

I'm not sure which release your on but you can check which is the slave and master by going under Manager » Licensing.