SOLVED: Tracker card from custom updater looks odd?

Raspberry Pi with HassIO
v. 0.92.2

Ok, after I finally got the path right for the custom card, it shows up, but instead of the ‘horn’ I see question marks???

tracker

Anybody knows what’s wrong?
The raspberry has full access to the net.

Try a title for the card.

         - type: custom:tracker-card
           title: "\U0001F37A Custom Card Updates" 
           trackers:
             ...

The \U0001F37A is the icon. The horn id the default in custom_updater.

If I enter that, it just shows “\U0001F37A Custom Card Updates” as the title

Hmm, for me, it works.
Auswahl_195

Is it browser dependant? I’m using FF devel

Yes, i think so.
I see different ones in FF on Ubuntu 16.04, 18.04 and iOS App.
Maybe try another:
https://unicode.org/emoji/charts/full-emoji-list.html

This one is very odd, I got it fixed.
But to fix it, I had to ‘change editor’ and not use the pretty one, but the text editor, and then give the title with quotes:
title: “\U0001F4E3 Custom Card Updates”

Now it works as it should, so it looks like a minor bug in custom updater card