I had "application locked in on 2018/08/13. Case held as per Back Office program" on mine.
Seen this queried elsewhere but no answer - what does this mean exactly?
Anything to worry about?
Locked in part is not of worry because that signifies when they took the application.
I also don't think the Back Office program is also important. It can be a pilot program or whatever.
Though, your short couple sentences notes make it hard to know what is going on.