@Martin, thanks; appreciate you looking.
Iāve checked ('cos my recall is pants) and my records are at odds with your discovery.
The order was placed at 14:36 and filled a minute later, as you said, but the price it was filled (green dotted line) was higher.
I think there is a case for saying that itās not only a lack of visual messaging but also execution, too.
I offer this only to enrich your research.
I wouldāve cancelled the order given the choice.