If the FBX source uses generic 'open source' code, then Poser seems to have problems.

Worse, sub-version changes to that code may 'sub-vert' functionality. I've several similar figures re-rigged in succession by same artist using same work-flow, but only one group of them 'play nice' with Poser. Blender and/or its plug-in had up-dated after about six weeks, and their temporary 'sweet spot' was lost... 

I've found Mixamo figures with earliest / oldest FBX version, anything 'Rigged/Exported from Maya', and Truebones' new ($$) 'PMX to FBX' utility usually work in Poser.

Note: As yet, T-bones' utility only sets hues, cannot call textures. Hand-loading is not a problem for a few materials, but gets silly beyond a dozen or so, especially if Diff complemented by bump, transparency, emission etc maps. And, d'uh, mind-blowing if dozens. I've sent the guy a link with better documentation of PMX texture-call storage, hope a #2.0 will arrive...