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Graphical glitches #3426

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opened 2026-02-16 17:40:01 -05:00 by yindo · 5 comments
yindo commented 2026-02-16 17:40:01 -05:00
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Originally created by @Davincible on GitHub (Dec 9, 2025).

Originally assigned to: @kommander on GitHub.

Description

I don't know when / why this happens, but have had it happen multiple times at random where the UI breaks down and starts showing the graphical glitches where old text gets stuck. Only way to fix it seem to reopen the TUI

OpenCode version

1.0.134

Steps to reproduce

No response

Screenshot and/or share link

Image

Operating System

MacOS

Terminal

Ghostty

Originally created by @Davincible on GitHub (Dec 9, 2025). Originally assigned to: @kommander on GitHub. ### Description I don't know when / why this happens, but have had it happen multiple times at random where the UI breaks down and starts showing the graphical glitches where old text gets stuck. Only way to fix it seem to reopen the TUI ### OpenCode version 1.0.134 ### Steps to reproduce _No response_ ### Screenshot and/or share link <img width="1112" height="179" alt="Image" src="https://github.com/user-attachments/assets/68109475-ac94-4c8a-83b4-39e964331942" /> ### Operating System MacOS ### Terminal Ghostty
yindo added the opentuibug labels 2026-02-16 17:40:01 -05:00
yindo commented 2026-02-16 17:40:02 -05:00
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@github-actions[bot] commented on GitHub (Dec 9, 2025):

This issue might be a duplicate of existing issues. Please check:

  • #3541: The screen is bugging out with the new "Screen"? Graphic or opencode bug - Similar graphical glitches with text and display corruption that require reopening
  • #2697: TUI looks horrible after a single prompt - Visual corruption and rendering issues in the TUI
  • #1864: tui rendering artifacting - TUI rendering issues where elements don't update properly and old content remains visible

Feel free to ignore if none of these address your specific case.

@github-actions[bot] commented on GitHub (Dec 9, 2025): This issue might be a duplicate of existing issues. Please check: - #3541: The screen is bugging out with the new "Screen"? Graphic or opencode bug - Similar graphical glitches with text and display corruption that require reopening - #2697: TUI looks horrible after a single prompt - Visual corruption and rendering issues in the TUI - #1864: tui rendering artifacting - TUI rendering issues where elements don't update properly and old content remains visible Feel free to ignore if none of these address your specific case.
yindo commented 2026-02-16 17:40:02 -05:00
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@kommander commented on GitHub (Dec 9, 2025):

That can only happen if something else in the process writes to stdout and pushes the content up, getting it out of sync with the render buffer. Have you seen any other output that should not be there?

@kommander commented on GitHub (Dec 9, 2025): That can only happen if something else in the process writes to stdout and pushes the content up, getting it out of sync with the render buffer. Have you seen any other output that should not be there?
yindo commented 2026-02-16 17:40:02 -05:00
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@Davincible commented on GitHub (Dec 10, 2025):

@kommander Depends on a bit on the instance when it happens, in this case only at the bottom of the screen, but I have had it also happen with the top bar, or random code bits.

@Davincible commented on GitHub (Dec 10, 2025): @kommander Depends on a bit on the instance when it happens, in this case only at the bottom of the screen, but I have had it also happen with the top bar, or random code bits.
yindo commented 2026-02-16 17:40:02 -05:00
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@kommander commented on GitHub (Dec 20, 2025):

Did this improve in latest version?

@kommander commented on GitHub (Dec 20, 2025): Did this improve in latest version?
yindo commented 2026-02-16 17:40:02 -05:00
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@Davincible commented on GitHub (Dec 23, 2025):

Image

@kommander unfortunately yes.

The most reliable way I found to reproduce;

  1. Use Ghostty
  2. use multiple Ghostty tabs
  3. Switch tabs, then back to OpenCode tab
  4. Voila, glitches

Also the way to fix them is to open a menu, like with ctrl p for example. Then it resets

@Davincible commented on GitHub (Dec 23, 2025): <img width="1962" height="359" alt="Image" src="https://github.com/user-attachments/assets/00f6e1cb-46db-45f4-8812-0f29f7507f6f" /> @kommander unfortunately yes. The most reliable way I found to reproduce; 1. Use Ghostty 2. use multiple Ghostty tabs 3. Switch tabs, then back to OpenCode tab 4. Voila, glitches Also the way to fix them is to open a menu, like with ctrl p for example. Then it resets
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Reference: anomalyco/opencode#3426
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