Copy on select" silently breaks all copying after long uptime – disabling the setting fixes it instantly without restart (Windows)

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• I have searched Warp bugs and there are no duplicates
• I have searched Warp known issues page and my issue is not there
• I have an issue with AI and have included the debugging ID (Optional, but helps expedite the AI quality fix). Debugging ID instructions
• I have technical issue and have included the logs (optional, but helps expedite the bug fix). Log instructions

Describe the bug

After Warp has been running for several days, copying text out of Warp stops working entirely: selecting text shows the "Copied" toast, and Ctrl+C on a selection also appears to succeed, but the Windows clipboard is never updated (old content remains).

The bug is tied to the "Copy on select" feature: the moment I disable Settings -> "Copy on select", copying via Ctrl+C works again INSTANTLY - no restart of Warp required. While broken, the degraded copy-on-select handler apparently also swallows explicit Ctrl+C copies.

This has been happening since my first installed Warp version and survives every update; it only ever appears after long uptime.

To reproduce

1. Enable "Copy on select".
2. Keep Warp running for several days (exact trigger time unknown; always appears only after long uptime).
3. Select text -> toast says "Copied" -> paste anywhere: clipboard still has the OLD content.
4. Ctrl+C on a selection: same silent failure.
5. Disable "Copy on select" -> copying works again immediately, without restarting Warp.

Expected behavior

Copy on select (and Ctrl+C) actually writes the selection to the Windows clipboard, or fails visibly instead of showing a success toast.

Screenshots, videos, and logs

Diagnostics performed WHILE the bug was active:

• Windows clipboard itself was healthy: Set-Clipboard/Get-Clipboard roundtrip OK from PowerShell, and "echo Test123 | clip" executed INSIDE Warp put "Test123" on the clipboard correctly (pasteable in other apps). Only Warp's UI copy path fails.
• Pasting INTO Warp always works; copy/paste between all other applications works.
• No process was holding the clipboard open (GetOpenClipboardWindow = null).
• Local console session (no RDP), no clipboard managers, no VM clipboard sharing.

Operating system (OS)

Windows

Operating system and version

10.0.19045

Shell Version

PowerShell 5.1 (der Bug ist Shell-unabhängig, UI-Ebene)

Current Warp version

v0.2026.10.14.08.27.stable_01

Regression

No, this bug or issue has existed throughout my experience using Warp

Recent working Warp date

No response

Additional context

Workarounds: disable "Copy on select" (permanent fix so far), restart Warp (temporary), or bypass via " | clip".

Does this block you from using Warp daily?

No

Is this an issue only in Warp?

Yes, I confirmed that this only happens in Warp, not other terminals.

Warp Internal (ignore): linear-label:b9d78064-c89e-4973-b153-5178a31ee54e

No response