Re: Campaign not paused
Hi maty011, and welcome to the forum.
Did the campaign not pause at all, or did it pause but the daily spend was still more than $20? I've not used a rule like this so I've no personal experience to draw upon but I suspect the answer is the same as the answer to why the daily budget is sometimes exceeded, which is neatly explained here.
As a matter of interest, why did you create this rule? The daily budget setting itself is a rule that limits how much is spent each day.