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+# Bug Tracker
+
+Track all bugs, issues, and behavioral problems here. Update this file whenever you discover or fix a bug.
+
+**Last Updated**: 2026-01-05 16:05 UTC
+
+---
+
+## 🔴 Critical Bugs (Blocking Functionality)
+
+### BUG-005: CRF quality settings not showing when CRF mode is selected
+- **Status**: 🔴 OPEN
+- **Reporter**: User (2026-01-04 21:10)
+- **Module**: Convert
+- **Description**: When user selects "CRF (Constant Rate Factor)" as the Bitrate Mode, the Quality Preset dropdown does not appear. The UI remains empty where the quality settings should be.
+- **Steps to Reproduce**:
+  1. Open Convert module
+  2. Set Bitrate Mode to "CRF (Constant Rate Factor)"
+  3. Expected: Quality Preset dropdown appears
+  4. Actual: No quality controls show up
+- **Impact**: High - Cannot adjust quality in CRF mode, which is the default and most common mode
+- **Root Cause**: Likely over-corrected the visibility logic in `updateQualityVisibility()` function. Made rules too strict after fixing BUG-001 and BUG-002.
+- **Investigation Notes**:
+  - CBR mode is set by default (works correctly - hides quality controls)
+  - Previous fixes made `updateQualityVisibility()` check for: `hide || hideQuality || remux`
+  - Where `hideQuality = mode != "" && mode != "CRF"`
+  - Need to verify the logic flow when switching to CRF mode
+- **Files to Check**:
+  - `main.go:8851-8883` - `updateQualityVisibility()` function
+  - `main.go:8440-8532` - `updateEncodingControls()` function
+  - `main.go:7875-7888` - Bitrate mode selection callback
+- **Assigned To**: opencode (handoff from Claude)
+- **Verified**: No (not fixed yet)
+
+### BUG-006: Windows app crashes mid-conversion with no logs
+- **Status**: 🔴 OPEN
+- **Reporter**: User (2026-01-05)
+- **Module**: Convert / Queue / Logging (Windows)
+- **Description**: VT crashes during batch conversions (typically the 3rd or 4th job). FFmpeg continues running, but the app exits and no logs are created afterward.
+- **Steps to Reproduce**:
+  1. On Windows, queue multiple conversions in Convert module
+  2. Start queue
+  3. After several jobs, app crashes while FFmpeg keeps running
+  4. Expected: App stays alive, logs updated
+  5. Actual: App crashes, logs missing
+- **Impact**: High - data loss in UI state, no diagnostics
+- **Root Cause**: Unknown. Suspected background goroutine / UI thread issue or log path failure on Windows.
+- **Investigation Notes**:
+  - Need to confirm whether `%APPDATA%\VideoTools\logs\videotools.log` is created at all
+  - Crash likely happens before log writes or after log file handle is lost
+- **Files to Check**:
+  - `internal/logging/logging.go` (init + panic handling)
+  - `main.go` (conversion execution, queue updates)
+  - Windows build path for `getLogsDir()`
+- **Assigned To**: Unassigned
+- **Verified**: No
+
+---
+
+## 🟠 High Priority Bugs (Major Issues)
+
+None currently open.
+
+---
+
+## 🟡 Medium Priority Bugs (Annoying but Workable)
+
+None currently open.
+
+---
+
+## 🟢 Low Priority Bugs (Minor Issues)
+
+None currently open.
+
+---
+
+## ✅ Recently Fixed (Last 7 Days)
+
+### BUG-001: Quality Preset showing in CBR/VBR modes (should only show in CRF)
+- **Status**: ✅ FIXED (2026-01-04)
+- **Reporter**: User
+- **Module**: Convert
+- **Description**: Quality Preset dropdown was showing when Bitrate Mode = CBR instead of only showing for CRF mode
+- **Impact**: Confusing UI, wrong controls visible
+- **Root Cause**: Duplicate visibility logic in `updateEncodingControls()` and `updateQualityVisibility()` conflicting with each other. Also `updateRemuxVisibility()` unconditionally showing containers.
+- **Fix**:
+  - Consolidated visibility logic into `updateQualityVisibility()` as single source of truth
+  - Made `updateRemuxVisibility()` call `updateEncodingControls()` instead of directly showing containers
+  - Removed explicit `.Hide()` call on quality section initialization
+  - Added `updateQualityVisibility()` call after section creation
+- **Files Changed**: `main.go:8522-8537, 8850, 8875, 8924-8928`
+- **Fixed By**: Claude
+- **Verified**: Yes, build passes
+
+### BUG-002: Target File Size showing when not in Target Size mode
+- **Status**: ✅ FIXED (2026-01-04)
+- **Reporter**: User
+- **Module**: Convert
+- **Description**: Target File Size container was visible even when Bitrate Mode was set to CRF
+- **Impact**: Confusing UI, irrelevant controls showing
+- **Root Cause**: `updateRemuxVisibility()` was unconditionally showing all encoding containers when not in remux mode
+- **Fix**: Changed `updateRemuxVisibility()` to call `updateEncodingControls()` which properly shows/hides based on bitrate mode
+- **Files Changed**: `main.go:8924-8928`
+- **Fixed By**: Claude
+- **Verified**: Yes, build passes
+
+### BUG-003: AAC and OPUS audio codec colors too similar
+- **Status**: ✅ FIXED (2026-01-04)
+- **Reporter**: User
+- **Module**: Convert (Audio codec selection)
+- **Description**: AAC (#7C3AED purple-blue) and OPUS (#8B5CF6 violet) colors were too similar to distinguish easily
+- **Impact**: Usability issue - hard to tell which codec is selected
+- **Fix**: Changed AAC color from #7C3AED (purple-blue) to #06B6D4 (bright cyan) for much better contrast
+- **Files Changed**: `internal/ui/colors.go:47`
+- **Fixed By**: Claude
+- **Verified**: Yes, build passes
+
+### BUG-004: Audio module missing drag & drop support
+- **Status**: ✅ FIXED (2026-01-04)
+- **Reporter**: User
+- **Module**: Audio
+- **Description**: Could not drag and drop audio or video files onto the Audio module tile
+- **Impact**: Forced manual file selection via browse button
+- **Fix**:
+  - Added `isAudioFile()` helper function to detect audio file extensions
+  - Modified `handleModuleDrop()` to accept audio files when dropping on audio module
+  - Added audio module handler in `handleModuleDrop()` to load files and show audio view
+- **Files Changed**: `main.go:2978, 3158-3180, 3186-3195`
+- **Fixed By**: Claude
+- **Verified**: Yes, build passes
+
+### BUG-007: Copy Error button lacked actionable details
+- **Status**: ✅ FIXED (2026-01-05)
+- **Reporter**: User
+- **Module**: Queue UI
+- **Description**: Copy Error only included a truncated error string with no context
+- **Fix**: Copy now includes job title, module, input/output, full error text, log path, and log tail
+- **Files Changed**: `main.go`
+- **Fixed By**: Codex
+- **Verified**: Yes, build passes
+
+### BUG-008: About page "Logs Folder" not opening on Windows
+- **Status**: ✅ FIXED (2026-01-05)
+- **Reporter**: User
+- **Module**: About / OS integration
+- **Description**: Clicking Logs Folder did nothing on Windows
+- **Fix**: Use `explorer` with normalized path, ensure folder exists
+- **Files Changed**: `main.go`
+- **Fixed By**: Codex
+- **Verified**: Yes, build passes
+
+### BUG-009: Contact sheet output saved inside thumbnails folder
+- **Status**: ✅ FIXED (2026-01-05)
+- **Reporter**: User
+- **Module**: Thumbnails
+- **Description**: Contact sheet was stored inside `_thumbnails` folder, adding extra navigation
+- **Fix**: Contact sheet now saves alongside source video; individual thumbs still use folder
+- **Files Changed**: `thumb_module.go`
+- **Fixed By**: Codex
+- **Verified**: Yes, build passes
+
+---
+
+## 📋 Known Issues (Not Bugs - Design/Incomplete Features)
+
+### ISSUE-001: Enhancement Module - Incomplete Implementation
+- **Status**: ⏸️ ON HOLD
+- **Module**: Enhancement
+- **Description**: Enhancement module framework exists but is not fully implemented
+- **Details**:
+  - SkinToneAnalysis features are placeholder implementations
+  - No UI wired up yet
+  - Module commented out in navigation
+- **Plan**: Complete in future dev cycle
+
+### ISSUE-002: Widget Deduplication - Incomplete
+- **Status**: 🔄 IN PROGRESS (opencode)
+- **Module**: Convert UI
+- **Description**: 4 widget pairs still need deduplication
+- **Details**:
+  - Pattern established with quality widgets (main.go:7075-7128)
+  - Remaining pairs:
+    - resolutionSelectSimple & resolutionSelect
+    - targetAspectSelect & targetAspectSelectSimple
+    - encoderPresetSelect & simplePresetSelect
+    - bitratePresetSelect & simpleBitrateSelect
+- **Plan**: Handed off to opencode agent
+
+### ISSUE-003: ColoredSelect Expansion - Incomplete
+- **Status**: 🔄 IN PROGRESS (opencode)
+- **Module**: Convert UI
+- **Description**: 32 widgets still need ColoredSelect conversion
+- **Details**: Resolution, aspect, preset, bitrate, frame rate selectors need semantic color coding
+- **Plan**: Handed off to opencode agent
+
+---
+
+## 🔧 How to Report a Bug
+
+When you find a bug, add it here with:
+
+```markdown
+### BUG-XXX: Short descriptive title
+- **Status**: 🔴 OPEN / 🔄 IN PROGRESS / ✅ FIXED
+- **Reporter**: Name/Date
+- **Module**: Which module (Convert, Audio, Player, etc.)
+- **Description**: What's wrong? What should happen?
+- **Steps to Reproduce**:
+  1. Step one
+  2. Step two
+  3. Expected vs Actual behavior
+- **Impact**: How bad is it?
+- **Root Cause**: (fill in when investigating)
+- **Fix**: (fill in when fixed)
+- **Files Changed**: (list files)
+- **Assigned To**: (agent name)
+- **Verified**: Yes/No
+```
+
+---
+
+## 🔍 Bug Statuses
+
+- 🔴 **OPEN**: Bug confirmed, not yet being worked on
+- 🔄 **IN PROGRESS**: Someone is actively fixing it
+- ✅ **FIXED**: Fix implemented and verified
+- ⏸️ **BLOCKED**: Waiting on something else
+- ❌ **WONTFIX**: Decided not to fix (explain why)
+- 🔁 **DUPLICATE**: Same as another bug (reference it)
+
+---
+
+## 📊 Bug Statistics
+
+**Current Status**:
+- 🔴 Critical Open: 2 (BUG-005, BUG-006)
+- 🟠 High Priority Open: 0
+- 🟡 Medium Priority Open: 0
+- 🟢 Low Priority Open: 0
+- ✅ Fixed (Last 7 Days): 7
+
+**Trends**:
+- 2026-01-05: 3 bugs fixed, 1 new critical bug opened
+- Focus Area: Convert UI visibility + Windows stability/logging
+
+---
+
+## 🎯 Next Steps
+
+1. **BUG-005** (Critical): Fix CRF quality settings visibility - Assigned to opencode
+2. **ISSUE-002**: Complete widget deduplication (4 pairs remaining) - Assigned to opencode
+3. **ISSUE-003**: Complete ColoredSelect expansion (32 widgets) - Assigned to opencode
+
+---
+
+## 💡 Notes
+
+- This file should be updated by ALL agents when they discover or fix bugs
+- When creating git issues, reference the BUG-XXX number from this file
+- Keep the statistics section updated
+- Move fixed bugs to "Recently Fixed" after 7 days, then archive them