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macOS Desktop: Session Diff causes permanent blank screen until storage/session_diff is deleted #15683
Description
Description
While using Session Diff in the macOS Desktop app (opening a diff and searching within it), the UI suddenly became unresponsive and turned into a blank screen.
After that moment, every relaunch of the Desktop app resulted in a permanent blank screen.
Deleting this folder restores the app:
~/.local/share/opencode/storage/session_diff
…but then session diff can’t be viewed (feature becomes unusable), so this is only a workaround.
This looks like the Session Diff storage data gets corrupted and the Desktop webview/UI crashes on startup when reading it.
The sidecar logs show repeated server failures immediately after interacting with Session Diff:
2026-03-02T05:16:18.174465Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:16:27.544802Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:16:33.126506Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:17:16.376128Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:17:24.434297Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:17:35.361343Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:17:43.348974Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:17:53.194827Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:17:58.484975Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:18:05.725259Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:18:11.649829Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
2026-03-02T05:18:18.775002Z INFO sidecar: opencode_lib::cli: ERROR service=server error= failed
After force quitting and restarting the app, the backend appears to start normally (CLI works, sessions initialize correctly), but the Desktop UI remains blank.
2026-03-02T09:38:48.155048Z INFO opencode_lib: Initializing app
2026-03-02T09:38:48.156036Z INFO opencode_lib: Main and loading windows created
2026-03-02T09:38:48.156161Z INFO opencode_lib::cli: No CLI installation found, skipping sync
2026-03-02T09:38:48.158281Z INFO opencode_lib: Setting up server connection
2026-03-02 12:38:48.735 OpenCode[97899:2369185] +[IMKClient subclass]: chose IMKClient_Legacy
2026-03-02 12:38:48.735 OpenCode[97899:2369185] +[IMKInputSession subclass]: chose IMKInputSession_Legacy
2026-03-02T09:38:49.486081Z INFO opencode_lib: Attempting server connection custom_url=None
2026-03-02T09:38:49.490132Z INFO opencode_lib: Spawning new local server
2026-03-02T09:38:49.490148Z INFO opencode_lib::cli: Spawning sidecar port=59379
2026-03-02T09:38:49.490496Z INFO opencode_lib: Server connection setup
2026-03-02T09:38:49.490510Z INFO opencode_lib: server connection started
2026-03-02T09:38:50.112555Z INFO sidecar: opencode_lib::cli: opencode server listening on http://127.0.0.1:59379
2026-03-02T09:38:50.215212Z INFO opencode_lib::server: Server ready elapsed=724.474583ms
2026-03-02T09:38:50.215238Z INFO opencode_lib: CLI health check OK
2026-03-02T09:38:50.215252Z INFO opencode_lib: Loading task finished
2026-03-02T09:38:50.215280Z INFO opencode_lib: Loading done, completing initialisation
Plugins
without plugin tested
OpenCode version
1.2.15
Steps to reproduce
No response
Screenshot and/or share link
No response
Operating System
macOS
Terminal
Desktop Version
Activity
emirthab commentedon Mar 3, 2026
The app keeps crashing because diff is set as the standard in the latest update.
github-actions commentedon May 3, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.