Windows 10 Mobile build 15245 breaks fingerprint login on Elite x3 and IDOL 4 Pro

[Windows Central]

Windows 10 Mobile build 15245 has broken fingerprint login support on the Elite x3 and IDOL 4 Pro.
Insiders are reporting that with build 15245 for Windows 10 Mobile, the fingerprint reader on HP Elite x3 and Alcatel IDOL 4 Pro are no longer functioning while the screen is off, rendering Windows Hello useless unless you power on the screen first.
As with most phones, fingerprint reader support in Windows 10 Mobile works whether the screen is on or off, allowing you to login via Windows Hello without having to power on the screen first. But in build 15245, it appears this function is broken, forcing you to power on the screen before the fingerprint reader becomes active.

Full story from the WindowsCentral blog...

 

[Mark Kaplan]

2 weeks in and still no fix for a new bug introduced in a flagship device.

 

[Mark Kaplan]

Build 15250 contains a fix for this,