Version 202602031842 has a known bug ( Bad IncusOS update (202602031842) - #4 by stgraber ); if you reboot into the prior installed version of IncusOS it should pickup an update that fixes it and then your system should boot properly again.
I’m not sure what the “Secure BIOS Violation” was, but from the screenshot IncusOS booted correctly, so that means the Secure Boot certificates are installed and the TPM is working as expected.