Wrong date on VPLS

Hello, I have MPLS/VPLS on my routers, I notice that when VPLS goes down, the wrong date and time is reported in column “Last Link Down Time”
Is there a bug or something ? My network is fully routed with OSPF/Mpls/Vpls. I have enabled NTP Server on my core router

/system clock
set time-zone-autodetect=no time-zone-name=Europe/XXX
/system ntp client
set enabled=yes primary-ntp=87.120.166.8
/system ntp server
set enabled=yes

ntp.png

And I have enabled SNTP Client on all AP stations

/system clock
set time-zone-autodetect=no time-zone-name=Europe/XXX
/system ntp client
set enabled=yes primary-ntp=10.1.1.1 secondary-ntp=10.3.1.1

Date problem with routerOS.JPG

There is a general bug in timestamps in winbox. I have read that it can be fixed by updating winbox and sometimes by deleting the cached information for that specific host.
(this is in the AppData folders)