Agent bugs & fixes
Top 4 AI agent bugs fixed, week of Oct 19 (ET)
ET · 4 bugs
Data: ET · As of · Published
Reactions and comments were counted at that time from the GitHub API.
The short version
Kilo Code’s chat copy bug drew the most discussion of the bugs that cleared the bar: 22 reactions and comments, fixed in v7.8.18 on Oct 26 ET. The other three had far less discussion.
The period’s busiest threads, such as Codex’s “Cannot serialize value” error, are still open or have no official fix version, so they’re left out.
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Selecting text in chat history jumps focus to the prompt, so Cmd+C fails
Fixed in v7.8.18. Symptom: There is no error message: selecting text in the chat history cleared the selection and moved focus to the prompt box, so Cmd/Ctrl+C and right-click Copy did nothing. The fix PR points to a webview change in VS Code 1.143 as the likely trigger.
Fix: Fixed in v7.8.18 (Oct 26, 2026, 5:05 AM ET) by PR #15472, which also closes duplicates #15382 and #15394. Release note: “Fix copying selected chat text with Cmd/Ctrl+C or right-click Copy in VS Code 1.143.”
Source: Issue · v7.8.18 release notes
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Agent Canvas won’t start a new server: maturin fails on Python 3.15
error: the configured Python interpreter version (3.15) is newer than Py O3's maximum supported version (3. 14) Fixed in v1.29.0. Symptom: Starting a new OpenHands server from Agent Canvas 1.27.1 failed with “💥 maturin failed”. It looks like uvx picked up CPython 3.15, which a dependency can’t build for yet.
Fix: Fixed in v1.29.0 (Oct 20, 2026, 6:22 PM ET) by PR #18731, which pins uvx to Python 3.12–3.14.
Source: Issue · v1.29.0 release notes
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VS Code: a plugin’s attribution label draws over the slash-command menu
Fixed in 2.1.309. Symptom: There is no error message: in the VS Code extension, a plugin’s attribution label (it names the plugin) stayed on top of the slash-command and @-mention menus and cut through their items. The reporter traced it to the label’s sticky positioning in the webview CSS.
Fix: Fixed in 2.1.309 (published to npm Oct 22, 2026, 4:34 PM ET). Its changelog entry says the plugin label above the prompt no longer draws over the slash command and @-mention menus, and cites this issue.
Source: Issue · Claude Code changelog
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Cline Desktop can’t resume sessions over about 8 MiB
The run failed: Hub connection closed (code=1006, reason=Connection ended)Fixed in Desktop 0.0.49. Symptom: Resuming a large Cline Desktop 0.0.48 session failed every time, and the hub log showed “Received too big message”.
The reporter and the fix PR both say the transcript was sent to the hub twice in one frame, which crossed its 16 MiB limit.
Fix: Fixed in desktop-v0.0.49 (Oct 26, 2026, 12:49 AM ET) by PR #15306. Release note: “Sessions with a very large transcript (over about 8 MB) can be resumed again.”
Source: Issue · Cline Desktop v0.0.49 release notes
What to watch next
- Codex #55744 (“Cannot serialize value”): users report a newer app build fixes it, but there’s no official release note yet.
- Kilo Code #15165 (context compaction looping): a fix PR merged Oct 26 ET, after the latest release, so it isn’t in a version yet.
- Gemini CLI #29682 (repeated prompts in YOLO mode): a related fix is in a nightly build but not in a stable release, and the issue is still open.