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Incorrect display of characters written on top of the wide emojis #6120

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opened 2026-01-31 00:30:19 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 00:30:19 +00:00
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Originally created by @o-sdn-o on GitHub (Jan 23, 2020).

Environment

Windows build number: 10.0.18363.0
Windows Terminal version: 0.8.10091.0

Steps to reproduce

In PowerShell type two wide emojis, move the cursor back (eg: ESC[nD) to place it on top of or between emojis, and then type a narrow character over it
or
copy and paste the following:

"Place X at the end: 👨👨" + "X"
"Place X one   left: 👨👨" + [char]0x1b + "[1D" + "X"
"Place X two   left: 👨👨" + [char]0x1b + "[2D" + "X"
"Place X tree  left: 👨👨" + [char]0x1b + "[3D" + "X"
"Place X four  left: 👨👨" + [char]0x1b + "[4D" + "X"
"Place X five  left: 👨👨" + [char]0x1b + "[5D" + "X"

Expected behavior

"X" is placed as expected:
image

Actual behavior

The letter "X" is displayed incorrectly, moreover, emojis are unexpectedly shifted:
image

Originally created by @o-sdn-o on GitHub (Jan 23, 2020). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 I ACKNOWLEDGE THE FOLLOWING BEFORE PROCEEDING: 1. If I delete this entire template and go my own path, the core team may close my issue without further explanation or engagement. 2. If I list multiple bugs/concerns in this one issue, the core team may close my issue without further explanation or engagement. 3. If I write an issue that has many duplicates, the core team may close my issue without further explanation or engagement (and without necessarily spending time to find the exact duplicate ID number). 4. If I leave the title incomplete when filing the issue, the core team may close my issue without further explanation or engagement. 5. If I file something completely blank in the body, the core team may close my issue without further explanation or engagement. All good? Then proceed! --> <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. If this is an application crash, please also provide a Feedback Hub submission link so we can find your diagnostic data on the backend. Use the category "Apps > Windows Terminal (Preview)" and choose "Share My Feedback" after submission to get the link. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment ```none Windows build number: 10.0.18363.0 Windows Terminal version: 0.8.10091.0 ``` # Steps to reproduce In PowerShell type two wide emojis, move the cursor back (eg: ESC[nD) to place it on top of or between emojis, and then type a narrow character over it or copy and paste the following: ``` "Place X at the end: 👨👨" + "X" "Place X one left: 👨👨" + [char]0x1b + "[1D" + "X" "Place X two left: 👨👨" + [char]0x1b + "[2D" + "X" "Place X tree left: 👨👨" + [char]0x1b + "[3D" + "X" "Place X four left: 👨👨" + [char]0x1b + "[4D" + "X" "Place X five left: 👨👨" + [char]0x1b + "[5D" + "X" ``` <!-- A description of how to trigger this bug. --> # Expected behavior "X" is placed as expected: ![image](https://user-images.githubusercontent.com/11535558/72994548-1b384b00-3e19-11ea-916c-afc007b64d0a.png) <!-- A description of what you're expecting, possibly containing screenshots or reference material. --> # Actual behavior The letter "X" is displayed incorrectly, moreover, emojis are unexpectedly shifted: ![image](https://user-images.githubusercontent.com/11535558/72994500-052a8a80-3e19-11ea-9082-54d0f3f875b1.png) <!-- What's actually happening? -->
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Reference: starred/terminal#6120
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