@Jonathan @ ANDRIA IT, Thanks for posting in Q&A. I find that you had problems on the specific setting "Require Device Encryption" in BitLocker deployment. Based as I know, Error code 65000 is a general error.
Please ensure the hardware supports DHA
TPM 2.0 or later UEFI 2.3.1 or later Meanwhile, I know you get Event ID 2900 on the affected devices with error code 0x10000 which suggests certificate trust issues.
You can follow the "8. What could be causing it" in the following link to find out which TPM related Root CA certificate is missing.
https://call4cloud.nl/2023/04/are-you-there-intune-its-me-hac/
Note: Non-Microsoft link, just for the reference.
After that, find the related certificate in the following location, install it on the affected device to see if the issue can be fixed.
https://go.microsoft.com/fwlink/?linkid=2097925.
Hope the above information can help.
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