Why does Sony Xperia 10 II lose fingerprints from time to time?

[attah]

Already reported, including a decent remedy.

Fingerprint record lost randomly

REPRODUCIBILITY (% or how often): 50 BUILD ID = OS VERSION (Settings > About product): 4.1.0.23 HARDWARE (XA2, Xperia 10…): Xperia 10 ii dual UI LANGUAGE: English REGRESSION: (compared to previous public release: Yes, No, ?): DESCRIPTION: Sometimes fingerprint unlock not working, the fingerprint record is lost, need to recreate. After a few moment later, the fingerprint in device lock show 3 records, but i remember there is only 1 after I recreated PRECONDITIONS: STEPS TO REPRODUCE: …