Using the YubiKey FIDO2 functionality the fingerprint validation is prone to failing validation despite using an enrolled fingerprint. Is there anyway to increase the preferred_platform_uv_attempts so the credential doesn't become blocked after only 3 attempts?
I'm using the python libraries, but it seems it is only possible to get this variable, but not set it.
The maximum number of retries for UV is defined by maxUvRetries.
From the CTAP2 spec:
maxUvRetries is a global value statically configured into an authenticator; it is the maximum number of retries that a user can experience. uvRetries is initialized to this value. Its value MUST be in the range of 1 to 25, inclusive.
So this value is set by the manufacturer, and cannot be changed.