# Milestone v1.5: Fix Session Recording

**Status:** ✅ SHIPPED 2026-02-25
**Phases:** 24-25
**Total Plans:** 2

## Overview

Fixed session recording crash and memory leaks to enable stable, long-duration recording sessions.

## Phases

### Phase 24: Fix Recording Crash

**Goal**: Fix C++ client crash when Start Recording is clicked
**Depends on**: None
**Plans**: 1 plan

Plans:
- [x] 24-01: Fix method names and parameters in useRecordingHelpers.js and JKSessionScreen.js

**Details:**

Requirements:
- CRASH-01: Call RegisterRecordingCallbacks before recording operations (ALREADY DONE in JKSessionScreen.js line 500)
- CRASH-02: Use correct method name StartRecording (not StartMediaRecording)
- CRASH-03: Use correct method name StopRecording (not FrontStopRecording)
- CRASH-04: Pass individual parameters to StartRecording (not settings object)

Success Criteria:
1. RegisterRecordingCallbacks is called during session or recording modal initialization
2. StartRecording method name matches legacy implementation
3. StopRecording method name matches legacy implementation
4. Parameters to StartRecording match legacy signature (id, tracks, video, chat, framerate)

Key Files:
- `jam-ui/src/hooks/useRecordingHelpers.js`
- `jam-ui/src/components/client/JKSessionScreen.js`
- `jam-ui/src/components/client/JKSessionRecordingModal.js`

**Note:** Original research was incorrect. Actual fix was JSON parsing in rest.js (recording.id undefined). Method name changes (CRASH-02/03/04) were applied then reverted as StartMediaRecording is the correct method.

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### Phase 25: Memory Leak Audit

**Goal**: Audit and fix memory leaks in recording modal
**Depends on**: Phase 24 (crash must be fixed first)
**Plans**: 1 plan

Plans:
- [x] 25-01: Fix timer, callback, and async cleanup in recording components

**Details:**

Requirements:
- MEM-01: Audit recording modal useEffect cleanup functions
- MEM-02: Audit timer/interval cleanup during recording lifecycle
- MEM-03: Verify no memory growth while recording modal is open

Success Criteria:
1. All useEffect hooks in recording modal have proper cleanup functions
2. All timers/intervals are cleared on unmount or state change
3. Recording modal can remain open 15+ minutes without memory growth

Key Files:
- `jam-ui/src/components/client/JKSessionRecordingModal.js`
- `jam-ui/src/hooks/useRecordingHelpers.js`

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## Milestone Summary

**Key Decisions:**
- Conditional cleanup for window.JK callbacks (multiple hook instances share globals)
- Ignore flag pattern for async operations in useEffect
- Unpack recordSettings to individual params for C++ client compatibility

**Issues Resolved:**
- C++ client crash on Start Recording (JSON parsing fix)
- Memory leaks in recording modal (timer, callback, async cleanup)
- "State update on unmounted component" warnings eliminated

**Issues Deferred:**
- CTRL-01/02/03 basic controls requirements (not explicitly mapped to phases)
- Duplicate recording start paths (doStartRecording vs useRecordingHelpers)
- Documentation inconsistency in 24-VERIFICATION.md

**Technical Debt Incurred:**
- 24-VERIFICATION.md describes reverted code
- Traceability table references non-existent Phase 26

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*For current project status, see .planning/ROADMAP.md*
