I have deployed the Mint App to each of my Search Heads and the TA to each indexer and my Heavy forwarder. When I look on the license server, it shows two licenses: the Splunk Enterprise license and Splunk Mint Term license. When I go to a search head and go to the Mint app, the wizard pops up and says "Your MINT license has not been added yet. Upload it here". That link takes me to the Licensing on the search head which shows I am pointed to the license master and Show all config details shows two license keys.
Any other thoughts?
With the release of MINT App 2.2, a MINT licenses is no longer required for Splunk Enterprise customers to use MINT App. For details, see MINT App docs.