Cursor movement (Left arrow) causes characters to visually disappear in JetBrains JediTerm since v0.129.0
Nobody has claimed this yet.
Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 55/100
Research direction
Start by reproducing the cursor-movement regression in JetBrains Rider's JediTerm with Codex CLI 0.129.0 and compare it with 0.128.0. Trace the terminal rendering change introduced in 0.129.0, then verify that moving left preserves visible characters and the full input buffer; add or run a regression test if the relevant test entry point is found.
Written by the indexing model from the issue text.
Description
What version of Codex CLI is running?
0.129.0
What subscription do you have?
pro
Which model were you using?
No response
What platform is your computer?
Windows 10.0.19045.6466
What terminal emulator and version are you using (if applicable)?
JetBrains Rider 2024.3.10 built-in terminal (JediTerm)
Codex doctor report
What issue are you seeing?
Cursor movement (Left arrow) causes characters to visually disappear in JetBrains JediTerm since v0.129.0
What steps can reproduce the bug?
Environment
- Codex CLI: 0.129.0+ (broken), 0.128.0 (works)
- OS: Windows 10.0.19045.6466
- Terminal: JetBrains Rider 2024.3.10 built-in terminal (JediTerm)
- Shell: cmd.exe / powershell.exe (both affected)
Reproduce
- Open Rider's built-in terminal
- Run
codex - Type
test - Press Left arrow key
- Character
tvisually disappears from screen
(buffer content is intact — pressing Enter still submits fulltest)
Regression range
- 0.128.0: works fine
- 0.129.0: broken
Workaround
Downgrade to 0.128.0.
Note
Other TUI tools (Claude Code, etc.) render correctly in the same terminal,
so this is specific to Codex's rendering strategy change in 0.129.0.
What is the expected behavior?
No response
Additional information
No response
- Dominant language
- Rust
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Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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