Chat Archive not rendering some Emoji 😟 albeit Roll20 Chat shows the emotes as expected 😀

Hi, Why is this, and is there any Best Practices, or Fix for this?  I somewhat understand that different OS render emotes differently, and some emoji are better cross-platform than others, and that a missing emoji may be replaced with a generic square / rectangle symbol. In my case, both examples are the same Chrome Browser, both on a Mac (they look like Mac emotes to me, and they look a little different when opened on a Windows Chrome browser).  In my case also, most/all of my group's emoji useage is coming through Mod Scripts (API), either ColorEmote, or MoTD Message Of The Day, or a couple other custom scripts I have.  These ones are rendered perfectly as-expected in Roll20 chat window. 😀 The problem is when I open the Chat Archive, now the emotes are just generic squares. 😟 Roll20 Chat Window example with Emotes Roll20 Chat Archive example with broken emotes.  Thanks in advance for any tips or feedback. Will there be The Aaron here soon with a good explanation I can understand? Or keithcurtis or Gauss? 

I don't think there is anything I can suggest for this.  I would file a bug report with the Devs via the Help Center . 

Aaron has a better understand of high bit order characters than I do. I just never depend on emojis transferring properly. I do not think there is anything you can do here; some of the text engines on Roll20 are older than others.

Keithcurtis, that statement is actually helpful to me, for the terminology "text engines". Would it be an appropriate SUGGESTIONS thread, title: "Update the Chat Archive Text Engine to match the Roll20 chat window" ?