---
status: diagnosed
phase: 26-jamtrack-polish
source: [26-01-SUMMARY.md, 26-02-SUMMARY.md, 26-03-SUMMARY.md]
started: 2026-02-25T13:50:00Z
updated: 2026-02-25T18:05:00Z
---

## Current Test

[testing complete]

## Tests

### 1. JamTrack popup window sizing
expected: Open a JamTrack in the session screen. The popup window should fit the player content without scrollbars. Window dimensions should be approximately 460x350 pixels.
result: pass
notes: User manually adjusted dimensions to look good

### 2. Create custom mix navigation
expected: In the JamTrack player, click the "create custom mix" link. A new browser tab should open with the JamTrack editor at /jamtracks/{id}.
result: pass

### 3. Controls and stems deferred until track ready (re-test after fix)
expected: Select a JamTrack that needs downloading. You should see loading/download progress first. The playback controls (play/stop/seek) should only appear AFTER the track is synchronized. Stems should only appear in the session screen AFTER the track is synchronized.
result: issue
reported: "Now when I opened a JamTrack, I see the JamTrack player only with close button. Can not see any status or progress indicators of what's happening there."
severity: major

### 4. No console warnings on close
expected: Open a JamTrack player, then close the popup window. Check browser developer console - there should be no warnings about leaked callbacks or "state update on unmounted component".
result: pass

## Summary

total: 4
passed: 3
issues: 1
pending: 0
skipped: 0

## Gaps

- truth: "User sees loading/progress indicators while JamTrack is being processed"
  status: failed
  reason: "User reported: Now when I opened a JamTrack, I see the JamTrack player only with close button. Can not see any status or progress indicators of what's happening there."
  severity: major
  test: 3
  root_cause: "Plan 26-03 fix was too aggressive - checkJamTrackSync needs to trigger loading state, but downloadState may be staying in 'idle' instead of transitioning to a loading state that shows progress UI"
  artifacts:
    - path: "jam-ui/src/components/client/JKSessionScreen.js"
      issue: "handleJamTrackSelect calls checkJamTrackSync but if track is not synchronized, no loading UI is triggered"
    - path: "jam-ui/src/components/client/JKSessionJamTrackPlayer.js"
      issue: "Download progress UI (lines 598-715) only shows for specific states - may not be showing for the state after checkJamTrackSync"
  missing:
    - "If checkJamTrackSync returns not synchronized, trigger loadJamTrack to start the download/packaging flow"
    - "Ensure download state transitions to a state that shows progress UI (checking/packaging/downloading)"
  debug_session: ""
