I'm not sure if helps but, IMHO, FBX rigs reported as 'Made in Blender' and rigged there usually crash, but those 'Made in Blender, Rigged in Maya' usually work correctly.Even when a recent FBX version, too recent to open with classic FBX Toolbox or nimble Open3Model Viewer...

eg Test-render of budget FBX 'alien-yellow-green' by Wofka from a Rendo rival. Arrived as intact rig, 100% scale, upright, was freely posed... quote:

3d model made in Blender. Rig in Maya. Textures in Substance Painter. Rigging - Controllers from Maya 2017 Built-in controller skinning all the bones.

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