Black Hole
May contain traces of nut
Taking up from this:
Today I found they haven't cleared the completed tasks from the queue since 5th/6th March (setting is for 5 days).
My queue record (on that machine) goes back nearly a year, so I think that function (from WebIF >> Settings >> Auto-Processing Settings) was broken before installing ntpclient. Neither does it seem very likely ntpclient could have such an effect. On another machine (without ntpclient) it's going back over a year, so maybe it is actually a complete unpruned record and the queue display clips it off (or maybe not – just guessing).
I just tried re-establishing the 7-day default, and WebIF reported "unchanged". This is a bug for another thread.