{"record":{"id":"01d87d374d7d16a7","repo":"zellij-org/zellij","slug":"could-not-find-editor-pane-to-replace","errorCode":null,"errorMessage":"Could not find editor pane to replace","messagePattern":"Could not find editor pane to replace","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"warning","filePath":"zellij-server/src/tab/mod.rs","lineNumber":3172,"sourceCode":"                    None\n                };\n                match replaced_pane {\n                    Some(replaced_pane) => {\n                        resize_pty!(\n                            replaced_pane,\n                            self.os_api,\n                            self.senders,\n                            self.character_cell_size\n                        )\n                        .non_fatal();\n                        self.track_stack_list_member_id_swap(\n                            pane_id_to_replace,\n                            PaneId::Terminal(pid),\n                        );\n                        self.insert_scrollback_editor_replaced_pane(replaced_pane, pid);\n                    },\n                    None => {\n                        Err::<(), _>(anyhow!(\"Could not find editor pane to replace\"))\n                            .with_context(err_context)\n                            .non_fatal();\n                    },\n                }\n            },\n            PaneId::Plugin(_pid) => {\n                // TBD, currently unsupported\n            },\n        }\n        Ok(())\n    }\n    pub fn suppress_pane_and_replace_with_pid(\n        &mut self,\n        old_pane_id: PaneId,\n        new_pane_id: PaneId,\n        close_replaced_pane: bool,\n        run: Option<Run>,\n        completion_tx: Option<NotificationEnd>,","sourceCodeStart":3154,"sourceCodeEnd":3190,"githubUrl":"https://github.com/zellij-org/zellij/blob/98a0837077492d53dd252ab30bc3e43e41e504f4/zellij-server/src/tab/mod.rs#L3154-L3190","documentation":"Logged (non_fatal) by Tab::replace_pane_with_editor_pane when the pane targeted by `pane_id_to_replace` exists neither in the floating pane set nor in the tiled pane set. The function looks the pane up in floating_panes.panes_contain / tiled_panes.replace_pane; both miss, so the editor pane cannot be swapped in and the request is dropped after logging.","triggerScenarios":"Requesting an editor-pane replacement for a specific pane id (scrollback edit / command pane targeting a pane id) after that pane has already been closed, exited, or moved to the suppressed set. The id is stale at the moment the replacement runs.","commonSituations":"Pane closes (process exit, Ctrl-d, close-pane key) racing an in-flight edit request; editing scrollback of a pane that exited while the edit action was queued; pane ids captured by a plugin or script and reused after the pane was gone; session resurrection replaying stale pane ids.","solutions":["Confirm the target pane still exists before issuing the edit/replace request (check pane list via plugin API or tab bar)","If this appears from a plugin, re-query focus/pane state instead of caching PaneId values across events","For scrollback editing, edit a live pane's scrollback rather than one whose process has exited","Treat as benign in logs unless editor panes visibly fail to open; then report the race upstream with a reproduction"],"exampleFix":"// before\nlet replaced_pane = if self.floating_panes.panes_contain(&pane_id_to_replace) { ... } else { self.tiled_panes.replace_pane(...) };\nmatch replaced_pane {\n    None => Err(anyhow!(\"Could not find editor pane to replace\")).with_context(err_context).non_fatal(),\n    ...\n}\n\n// after: include the stale id in the log for diagnosis\nNone => Err(anyhow!(\"Could not find pane {pane_id_to_replace:?} to replace with editor pane\"))\n    .with_context(err_context).non_fatal(),","handlingStrategy":"validation","validationCode":"// check the target pane still exists before requesting replacement\nif tab.get_pane_with_id(pane_id_to_replace).is_none() {\n    log::debug!(\"pane {pane_id_to_replace:?} is gone; skipping editor replacement\");\n    return Ok(());\n}","typeGuard":"fn pane_is_replacable(tab: &Tab, pane_id: PaneId) -> bool {\n    tab.get_pane_with_id(pane_id).is_some()\n}","tryCatchPattern":"// non_fatal path only logs; wrap callers that must not continue blindly:\nif let Err(e) = tab.replace_pane_with_editor_pane(pid, pane_id_to_replace) {\n    log::debug!(\"editor replacement failed for {pane_id_to_replace:?}: {e:#}\");\n}","preventionTips":["Never cache PaneId values across async boundaries; re-resolve from live state at call time","For scrollback edits, target panes whose process is still alive","In plugins, re-query pane lists after pane-close events instead of reusing ids captured earlier"],"tags":["rust","zellij","pane-lifecycle","stale-id","non-fatal"],"backgroundTag":null,"analyzedSha":"98a0837077492d53dd252ab30bc3e43e41e504f4","analyzedAt":"2026-08-16T13:02:01.396Z","schemaVersion":2},"datasetVersion":"2026-08-16T13:17:31.715Z"}