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Glad it worked. Since blender 2.8 hasn't been released yet we can only assume they will have a fix ready for when it does.
First of all I'm using an unsupported linux distro, no support required. I've noticed this has also been reported with Blender 2.8
can you check to see if the /scripts/addons/io_scene_fbx/export_fbx.py file is missing?