I got recently update Security Patch level N960FXXU4DSLB/... (Dated 1 Dec 2019) see the attached photo, from software update in the setting.
After that the every time I access to the secured folder, I need to reset the pin because screen shows my input does not match, I did reset accordingly and use the app in secured folders with no problem s, but when I switch to home and come back to secured folders, I input the PIN that just have changed. It still shows not match. And I have reset again. Would help to advise what step I missing. Btw, It works fine before update Patch. Thank you.