Fingerprint unlock turned off by itself

Hello! So this is weird but my fingerprint unlock option turned off by itself. I haven't changed any settings I was just using my phone normally and suddenly the phone refused to unlock by fingerprint. The other options like AppLock worked so it was pnlo for the unlocking of the phone that fingerprint didn't work. So I went to the fingerprint settings and the option to unlock the phone by fingerprint was turned off! I haven't turned it off! Should I worry that my phone was hacked or is this...

Fingerprint unlock turned off by itself

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