I run the Win 10 March updates and checked that KB5053606 update was successful.
But then I checked the updates again and Windows started that update again.
Because it seemed to be stuck at 20 % I tried to find out what’s going on: update history and Windows version. It turned out that the version wasn’t the latest (the “critical” figures were like xxxx41.xxxx while the newest are xxxx45.xxxx).
Luckily the update finally completed and even the version number was updated too.
Now I wonder what happened and is such behavior “not unusual”. (Normal it isn’t because that hasn’t happened earlier. A couple of times Windows has tried to update again but then the earlier attempts were unsuccessful.)
