When you install Burn, the same fonts that are installed by default with your Creative Finishing application are also installed on the render nodes.
However, if you installed additional fonts on the workstation that are not provided with your application, you must also install those fonts on each render node. Contact your third-party font supplier(s) for information about Linux support for those fonts.
Ensure any 3D Text fonts used with Action nodes in the Batch setups you submit to Burn are installed.