CAD Overnight Rate

Hello. I have some queries regarding the way a currency acts when the overnight rate news are released. Usually, when the rate is cutted, the currency tends to depreciate. So I should receive more CADs for 1 $. Instead, on the 22nd of January, although the rate was cutted, the price for USDCAD went down for about 47 pips in 5 minutes. Why?
Thank you.

Check again. The rate was not cut on January 22, but it was the previous month. The accompanying comments most likely are what moved the market.