Take a look at this post - it could help:
I was having the same issue with my eGPU, but it fixed it…
Just follow the mentioned steps and let us know if it solved your problem. 
- Remove Windows Hello.
- Suspend Bitlocker.
- Boot to BIOS and disable TPM.
- Boot to system and set up Windows Hello.
- Check with Powershell if Windows Hello keys are indeed stored on the disk now.
- Reboot to BIOS and enable TPM.
- Boot to system and resume Bitlocker.