Undeterministic glitches of text with colored background #2971

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opened 2026-01-30 23:10:01 +00:00 by claunia · 0 comments
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Originally created by @mcpiroman on GitHub (Jul 27, 2019).

Environment

bd5cae13

Steps to reproduce

Run program of this kind:

int main()
{
	cout << "\x1B[41m";
	cout << "X Red ";
	cout << "\x1B[42m";
	cout << "Green\n";
	cout << "\x1B[43m";
	cout << "Yellow ";
	cout << "\x1B[44m";
	cout << "Blue";
	cout << "\x1B[0m";
	return 0;
}

Expected behavior

image

Actual behavior

bug

Originally created by @mcpiroman on GitHub (Jul 27, 2019). <!-- 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨 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. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment bd5cae13 # Steps to reproduce Run program of this kind: ``` int main() { cout << "\x1B[41m"; cout << "X Red "; cout << "\x1B[42m"; cout << "Green\n"; cout << "\x1B[43m"; cout << "Yellow "; cout << "\x1B[44m"; cout << "Blue"; cout << "\x1B[0m"; return 0; } ``` <!-- A description of how to trigger this bug. --> # Expected behavior ![image](https://user-images.githubusercontent.com/38111589/61995695-ff333700-b08b-11e9-92b6-86a1e8f60457.png) # Actual behavior ![bug](https://user-images.githubusercontent.com/38111589/61995698-09edcc00-b08c-11e9-8d15-567a2e3110a2.png)
claunia added the Resolution-Duplicate label 2026-01-30 23:10:01 +00:00
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Reference: starred/terminal#2971