My sympathies. I was caught thus when I thought to upgrade my nice CAD package to latest, which now supported FBX. No, my premium CAD Pro platinum version was a year too old to qualify for any discount. [Sundry expletives redacted...]

Fortunately, while I was tying to figure pros & cons vs budget, I discovered latest CAD version still did not support OBJs' MTL, and the FBX handling was minimal. [More expletives redacted...]

I've had to track down another CAD suite which did play nice with OBJ+MTL models. Happens it would be less expensive than expected, but I've not yet had chance to test-run their trial month...

IMHO, YMMV, may I suggest waiting for Poser_12.1, expected ~Q2_2021 ? There's a bunch of icky bugs in 12.0, currently being swatted. Also, per news-letters, some 'good stuff' that didn't make the 12.0 release...

FWIW, no-one seems to have tried the 'improved FBX' support in P_12.0...