Desktop Electron can stay stuck on "Just a moment..." after sidecar is ready

[aiulms]

Description

On macOS arm64, the Electron desktop app can stay on the Just a moment... loading window even though the sidecar is already up and responding.

What I observed locally:

• the sidecar reaches server ready
• the desktop window never advances past the loading screen
• this reproduces with a clean local state

OpenCode version

1.4.4 and 1.4.11

Operating System

macOS 26.3.2

Steps to reproduce

1. Launch the Electron desktop app on macOS arm64
2. Wait for startup to finish
3. Observe that the UI remains on Just a moment...

Notes

This appears to be in the Electron desktop startup/loading flow rather than the sidecar health check itself.

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• OpenCode Desktop is just a blank screen, "Just a moment.." MacOS 26.3.1, MCPs will not work #21241: Same symptom (stuck on "Just a moment...") on macOS arm64 / M-chip, currently open
• [Bug]: Infinite "Just a moment..." loading screen on first launch - macOS (Apple Silicon) #20857: Identical issue (infinite "Just a moment..." loading screen on macOS Apple Silicon), now closed

If your issue is distinct (e.g., it reproduces in a specific scenario that the above do not cover), please add details clarifying how it differs.