Yes, this happens. I have seen it in the past. But I agree it does not make rational sense. Let me explain:
A pps need only dip for a fraction of a second, for your limit order to be executed.
These "price spikes" are not always recorded by brokerage firms.
So its possible to pay more than the high, or, less than the daily lows reported by the brokerage firm.
You can see this by comparing hourly, or by the minute highs or lows with the daily, weekly, monthly lows.
The larger time frames dont show those short term price spikes, instead they often use the daily, weekly, or monthly closing prices, not necessarily the prices you paid in that same time frame.
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