CC4 is crashing consistently when sending to iClone a character to which is applied a particular hair - it's a legacy CC3 hair, I think since first version of IC7.
Here's the Feedback Tracker issue, the hair is attached also here in case you're curious to try.
https://www.reallusion.com/FeedBackTracker/Issue/Crash-due-to-hair-when-sending-character-to-iClone

As I mentioned there, if hair is applied directly in iClone, there's no problem. Tried including with CC4 native Camilla.



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Software developer. iClone hobbyist since January 11, 2020. Best work so far: Robots among us: The Lab and The sad end of a legend
In progress: Black Mamba
AMD Ryzen 3950X 16C/32T 4.2 GHz, 64GB RAM, RTX2080 11GB, 2TB Samsung 970 Pro SSD, 8TB Seagate BarraCuda HDD, Win11 64-bit, iClone 8.12

I fixed the hair, but I still wish they fix the damn hair problem that seems keeps popping up left and right in IC and CC
https://drive.google.com/file/d/1K8pF9OLO91VzouIHGgdYAqPaGrcJO91K/view?usp=sharing

I'm not asking, Mr. G, how you fixed it  Thank you 🤗

______________________________________________________________________________
Software developer. iClone hobbyist since January 11, 2020. Best work so far: Robots among us: The Lab and The sad end of a legend
In progress: Black Mamba
AMD Ryzen 3950X 16C/32T 4.2 GHz, 64GB RAM, RTX2080 11GB, 2TB Samsung 970 Pro SSD, 8TB Seagate BarraCuda HDD, Win11 64-bit, iClone 8.12