I’m using WHM/cPanel. When I select PHP-FPM for a site it is no longer showing up inside New Relic. When I have it unselected it works as normal. I’ve confirmed it shows up in phpinfo() with all the variables shown, the only difference is the app name shows default under PHP-FPM.
I’d recommend taking a look at this guide:
Your FPM installation is likely not found by the installer and needs to be added with the NR_INSTALL_PATH variable: