Enforcing lock screen for WIN10 Pro 1809 with July Cumulative update

Hello Microsoft Community,

I have this issue with WIN10 Pro 1809 with July Cumulative update which wont accept the lock screen policy

Policy path: Computer Configuration>Policies>Windows Settings>Security Settings>Local Policies>SecuritySettings>Interactive logon: Machine inactivity limit > 900sec (15min)..

I have this issue only with this single machine..

I tried to gpupdate /force , restart the comp, re-enter to the domain..

this is the computer report:

https://1drv.ms/u/s!AmqLiXvrm2MTghK-GoaCkusqLexh?e=TL8ABf