Client chat messages appearing in wrong order

I noticed this minor bug on both the live server and the PBE. Some of the messages I send appear in the wrong order. For example a friend of mine sends me "Wanna duo?", and I reply "Sure", for some reason "Sure" will sometimes appear above "Wanna duo?", as if it was the first message sent. This occurs on both "sides" of the chat, meaning that both me and my friend can see it. It happened multiple times, with multiple people.
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