Specific emoji render as wrong characters in COSMIC Terminal

[gour]

Hello, while working on some Python CLI script using yr_weather library, I've noticed that Cosmic Terminal does not render properlly some emoji characters which are rendered correctly with e.g. Tilix terminal emulator.

Distribution: Pop!_OS 24.04 (Noble) with COSMIC desktop
COSMIC Terminal version: cosmic-term 1.0.13
Font: Noto Sans Mono (default)
Emoji font installed: fonts-noto-color-emoji 2.047-0ubuntu0.24.04.1

Description

Several specific emoji render as incorrect fallback characters in COSMIC Terminal while rendering correctly in Tilix on the same system. The issue is not blank/missing glyphs but wrong characters being substituted.

Affected emoji

Emoji	Unicode	Expected	Actual in COSMIC Term
☀️	U+2600 U+FE0F	Sun	* or gear symbol
🌫️	U+1F32B U+FE0F	Fog	≈ or pink square
🌤️	U+1F324 U+FE0F	Sun behind cloud	⇒
🌁	U+1F301	Foggy	pink square
🌅	U+1F305	Sunrise	orange square
🌃	U+1F303	Night city	blue city block

Steps to reproduce

$ echo "☀️ 🌫️ 🌤️ 🌁 🌅 🌃"

The result is in the attached shots: cosmic-terminal.png and tilix.png

In COSMIC Terminal: wrong/fallback characters shown

In Tilix: all emojis render correctly

Observations

• The variation selector U+FE0F appears to cause issues — removing it changes rendering but still incorrect
• Many other emojis render fine (🌙 🌧️ ⛅ 🌊 🌈)
• fontconfig configured with Noto Color Emoji as monospace fallback — no improvement

Environment

❯ fc-match monospace
DejaVuSansMono.ttf: "DejaVu Sans Mono" "Book"

❯ fc-list | grep -i noto | grep -i emoji
/usr/share/fonts/truetype/noto/NotoColorEmoji.ttf: Noto Color Emoji:style=Regular

Expected behaviour

All standard Unicode emoji should render as their correct glyphs, consistent with other terminal emulators on the same system.

Sincerely,
Gour

[ryanwarfield]

Can't reproduce on Cachy OS! (also cosmic-term 1.0.13)