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Exiting python 3.10.x interactive shell leads to render glitches, or renderer crash #20002

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opened 2026-01-31 07:00:12 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 07:00:12 +00:00
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Originally created by @oising on GitHub (May 29, 2023).

Windows Terminal version

1.18.1421.0

Windows build number

10.0.22631.1825

Other Software

Python 3.10.4

Steps to reproduce

I cannot repro this renderer crash, but I was using interactive python 3.10.4 (py) and trying to edit the current line with the arrow keys and the last line became glitchy with characters missing. I exited the cli, attempted to clear screen with ctrl+L (default powershell binding) and got the effect shown in "actual behaviour" below.

I can repro glitchy rendering though by running "py", moving the cursor around a bit, then "ctrl+z," to exit. The terminal then fails to render the text correctly and acts very weird. I cannot screenshot the rendering as when I do, the screen refreshes and the glitches disappear.

Expected Behavior

Expected to clear the screen :)

Actual Behavior

image

clicking "ok" results in the same dialog popping up. it's a loop.

Originally created by @oising on GitHub (May 29, 2023). ### Windows Terminal version 1.18.1421.0 ### Windows build number 10.0.22631.1825 ### Other Software Python 3.10.4 ### Steps to reproduce I cannot repro this renderer crash, but I was using interactive python 3.10.4 (py) and trying to edit the current line with the arrow keys and the last line became glitchy with characters missing. I exited the cli, attempted to clear screen with ctrl+L (default powershell binding) and got the effect shown in "actual behaviour" below. I _can_ repro glitchy rendering though by running "py", moving the cursor around a bit, then "ctrl+z,<enter>" to exit. The terminal then fails to render the text correctly and acts _very_ weird. I cannot screenshot the rendering as when I do, the screen refreshes and the glitches disappear. ### Expected Behavior Expected to clear the screen :) ### Actual Behavior ![image](https://github.com/microsoft/terminal/assets/1844001/a85f1488-bfb0-4d1f-9429-ef057aafe999) clicking "ok" results in the same dialog popping up. it's a loop.
claunia added the Needs-TriageArea-RenderingIssue-BugNeeds-Attention labels 2026-01-31 07:00:12 +00:00
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Reference: starred/terminal#20002
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