codex - 💡(How to fix) Fix During or after task execution, Codex sometimes displays long nonsensical mixed-language/token strings. [2 comments, 3 participants]

codex2026-04-11 12:28:39

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openai/codex#17452•Fetched 2026-04-12 13:28:35

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Fix Action

Fix / Workaround

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Confirm whether this is a known Codex UI/streaming issue.
Share any mitigation steps.
Clarify whether only completed/final output should be trusted when this happens.

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What version of Codex CLI is running?

5.4

What subscription do you have?

pro

Which model were you using?

gpt-5.4

What platform is your computer?

windows

What terminal emulator and version are you using (if applicable)?

githab

What issue are you seeing?

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What steps can reproduce the bug?

I’m seeing repeated garbled terminal/UI output in Codex that looks like corrupted streamed text rather than a valid model response.

Observed behavior:

During or after task execution, Codex sometimes displays long nonsensical mixed-language/token strings.
The text does not correspond to repo files, test output, or a meaningful assistant response.
It appears as UI/stream corruption rather than task content.
This makes it hard to trust intermediate visible output.

Impact:

I cannot reliably distinguish valid in-progress output from corrupted stream text.
It creates confusion during coding tasks and review.

What would help:

Confirm whether this is a known Codex UI/streaming issue.
Share any mitigation steps.
Clarify whether only completed/final output should be trusted when this happens.

Repro context:

Happened during multi-step coding work with terminal/test output in Codex.
Normal git/test commands were being run when the garbled text appeared.

Please investigate as a possible streaming/rendering bug.

What is the expected behavior?

Additional information

No response

extent analysis

TL;DR

The issue can be mitigated by trusting only the final output when garbled text appears in the Codex terminal/UI output.

Guidance

Verify if the issue is a known Codex UI/streaming bug by checking the official documentation or support channels.
When encountering garbled text, try to distinguish it from valid output by looking for patterns or keywords that are not related to the task or test output.
Consider reporting the issue to the Codex support team with detailed reproduction steps and screenshots, like the one provided.
As a temporary workaround, focus on the final output of the task execution, as it is more likely to be accurate and reliable.

Example

No specific code example is applicable in this case, as the issue seems to be related to the Codex UI/streaming.

Notes

The provided text appears to be a mixture of different languages and characters, which might indicate a character encoding or decoding issue. However, without more information about the specific task or test being run, it's difficult to provide a more detailed analysis.

Recommendation

Apply the workaround of trusting only the final output when garbled text appears, as it is the most reliable way to obtain accurate results until the issue is officially addressed by the Codex team.

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Common Issue

Are others likely hitting this too?

Flaky / Intermittent

Is it intermittent?

Verified / Reproducible

Can you reproduce it reliably?

#environment setup #docker error #permission error #memory optimization #batch processing

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codex - 💡(How to fix) Fix During or after task execution, Codex sometimes displays long nonsensical mixed-language/token strings. [2 comments, 3 participants]

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Fix Action

Fix / Workaround

What version of Codex CLI is running?

What subscription do you have?

Which model were you using?

What platform is your computer?

What terminal emulator and version are you using (if applicable)?

What issue are you seeing?

What steps can reproduce the bug?

What is the expected behavior?

Additional information

extent analysis

TL;DR

Guidance

Example

Notes

Recommendation

Still need to ship something?

TRENDING

codex - 💡(How to fix) Fix During or after task execution, Codex sometimes displays long nonsensical mixed-language/token strings. [2 comments, 3 participants]

Recommended Tools

GitHub issue graph ai analysis

Fix Action

Fix / Workaround

What version of Codex CLI is running?

What subscription do you have?

Which model were you using?

What platform is your computer?

What terminal emulator and version are you using (if applicable)?

What issue are you seeing?

What steps can reproduce the bug?

What is the expected behavior?

Additional information

extent analysis

TL;DR

Guidance

Example

Notes

Recommendation

Still need to ship something?

RELATED_DISCOVERY

TRENDING