Just to be on the safe side: I have a TPM 2.0 chip almost like the one on the screenshot above, definitely working. When I start Enpass, it asks me for my fingerprint, which it successfully receives, and when Enpass should unlock, it still asks for the master password. Is this the same problem you are having? Or won't it even ask for your fingerprint/Windows Hello credentials at all?
I do believe this is only happening (since quite a while, but not forever) on one machine with an internal TPM, but USB fingerprint reader. Another machine, also with TMP 2.0 and an external fingerprint reader, unlocks just fine.