If you use both Front End PM and Ultimate Member plugins, there is a good chance that you want to integrate Front End PM with Ultimate Member. To ease the process i have wrote a custom extension to integrate Front End PM with Ultimate Member.
Please use https://wordpress.org/plugins/front-end-pm-ultimate-member-integration/
This works out of the box, no settings required.
Screenshot:
This is a community maintained custom extension. There are lots of plugins for integration, so it is not possible to maintaine all. I do not provide support for this extension.