Unity3D crashes on DAZ FBX+[morphs export] - Confirmed by Unity3D tech. May be DAZ issue?

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Unity3D 4.3 is crashing on FBX with [morphs export] in to DAZ. Anyone else with Unity getting this?
Below is the correspondence I have had with the Unity tech. I am now thinking it is a DAZ problem, because it seems to be happening with DAZ3D 4.6.2.72 Public Beta. I was not having this with earlier versions of DAZ.

From me:

GenesisWithMorph.fbx is exported through DAZ3D 4.6.2.72

Unity3D crashed upon importing this file. It only seems to be happening with morphs. I did not have this problem with earlier version of Unity3D only with latest 4.3

Genesis.fbx imports just fine.

From Unity:

Hey,

We have been able to reproduce this bug and have sent it for resolution with our developers. We cannot say when the resolution will be publicly available. Also i tried in previous versions of Unity and it seems i can repro this prior to 4.3.3. Can you tell us which version of Unity you we're using when you didn't encounter this issue ?

We highly appreciate your contribution. If you have further questions, feel free to contact us.

Regards,
Silviu
Unity QA

From me:

I believe it was 4.3.0; however, I may have also updated DAZ during the same
time as Unity updates. I will also check with DAZ tech.

Thanks.