I don't understand

At about 8:00pm yesterday we were motoring at 5.3 knots. But due to the current making a mere 2.9knots forward progress. We stopped the engine and went backwards, initially at 2.2 knots.

Before we got even the faintest hint of a breeze at 7:00am this morning we'd floated backwards on the current 11 miles.

We are now about a mile from where we stopped last night. The log (the sensor that tells you half fast your going through the water). Reads 1 knot ish (not that its gonna be terribly accurate at that point, but that's still sweet Fanny Adams). But were doing 2.2 knots in the direction we want to go.

That doesn't make sense. Even in terms of tidal not current it doesn't make sense, since the time of day is similar, and tides only shift forward a bit each day. The don't go completely opposite.

I'm not complaining mind, but if we'd had this current last night, this would be on the internet, and I'd be in the pub. Not staring at the same view as yesterday