OK, I took a look at the Better FBX Import  & Export plugin at Blender Market, and the person who developed this tool stated:

"Blender is lack of native FBX support, when we import some older and newer FBX files, it often fails.

So I made a better FBX importer and exporter with official FBX SDK from scratch."

Since LuxXeon stated above:

"I know Blender actually had some issues with FBX early on and there are other software packages that simply do not support all the amazing features that Autodesk has packed into the FBX format due to licensing limitations or limited access to the SDK."

I'm wondering how this person who created this Blender add-on was able to use the official FBX SDK from scratch.  Maybe I'm overthinking this, but it just makes me wonder if he has an official copy of Autodesk's FBX SDK, and how did he get it.

_______________

OK . . . Where's my chocolate?

Butterfly Dezignz