Stored credential for Yubikey doesn't work in version 2026.2.14.0

Hi,
Today we upgraded to the newest version of the free edition, and since then the Yubikey entries stored in the Credential Vault give the error message "An authentication error has occurred. Authentication failed because NTLM authentication has been disabled." When I try to logon with user/password and then I choose the Yubikey entry, then it works ok, only the entry stored in the vault produces the error message. I tried several things, but none of them helped:

• I tried to change the entries from hostname to FQDN
• I enabled the local resource "Smart Cards or Windows Hello for Business"
• Tried to re-create the credential entry, however by pushing the "Test configuration" I get the correct certificate that is also stored on the Yubikey
• I tried to change the default RDP type in the general configuration

None of these helped. When I uninstall the new version and install the previous one 2026.2.13.0 it suddenly starts to work again.

Did anyone had the same or similar experience? Do you have any ideas how to solve the issue?

Thanks!