So here's the crash Log.. I had to turn on crash reporter.. Funny since i dont really remember turning it off.. And now realised maybe i should of posted in bugs thread? Sorry.
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 com.cockos.reaper 0x00000001001dd050 CalcItemLanePositions(WDL_PtrList<MediaItem>*, int, int) + 528
1 com.cockos.reaper 0x00000001001dcc65 ItemPaintPrep(MediaTrack*, bool, double, double, int*, int*, int) + 661
2 com.cockos.reaper 0x00000001001c7ea6 MediaTrack:
aint_track(LICE_IBitmap*, int, int, int, int, int, int, int) + 822
3 com.cockos.reaper 0x000000010014d623 TrackList_PaintView(LICE_IBitmap*, HDC__*, RECT*) + 2275
4 com.cockos.reaper 0x000000010041a2e2 TrackListWindowProc(HWND__*, unsigned int, unsigned long, long) + 4194
5 com.cockos.reaper 0x0000000100599f1a CoolSBWndProc(HWND__*, unsigned int, unsigned long, long) + 250
6 reaper_sws.dylib 0x00000001090528df ZoomWndProc(HWND__*, unsigned int, unsigned long, long) + 1324
7 com.cockos.reaper 0x00000001003e5bf3 _ZL21DrawSwellViewRectImplP16REAPERSwell_hwnd6CGRe ctP5HDC__ + 787
8 com.cockos.reaper 0x00000001003e5cdc _ZL21swellRenderOptimizelyiP16REAPERSwell_hwndP5HD C__aP11WDL_PtrListIvEPK6CGRectiiib + 220
9 com.cockos.reaper 0x00000001003e640f _ZL21swellRenderOptimizelyiP16REAPERSwell_hwndP5HD C__aP11WDL_PtrListIvEPK6CGRectiiib + 2063
10 com.cockos.reaper 0x00000001003e0152 -[REAPERSwell_hwnd _recursiveDisplayRectIfNeededIgnoringOpacity:isVis ibleRect:rectIsVisibleRectForView:topView:] + 434
11 com.apple.AppKit 0x00007fff94ce2b5e -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVis ibleRect:rectIsVisibleRectForView:topView:] + 5821
12 com.apple.AppKit 0x00007fff94ce0da3 -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVis ibleRect:rectIsVisibleRectForView:topView:] + 270
13 com.apple.AppKit 0x00007fff94cdc1bb -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVi sibleRectForView:] + 4755
14 com.apple.AppKit 0x00007fff94cd4c35 -[NSView displayIfNeeded] + 1676
15 com.cockos.reaper 0x00000001003fa3d2 UpdateWindow(HWND__*) + 114
16 com.cockos.reaper 0x000000010041f8aa TrackList_ResizeContents(int, int) + 1034
17 com.cockos.reaper 0x000000010044fe35 MediaTrack::ControlProc(HWND__*, unsigned int, unsigned long, long) + 13701
18 com.cockos.reaper 0x000000010044c88e MediaTrack::TrackCtlProc(HWND__*, unsigned int, unsigned long, long) + 94
19 com.cockos.reaper 0x00000001003e56b3 _ZL28SwellDialogDefaultWindowProcP6HWND__jml + 755
20 com.cockos.reaper 0x00000001003e66b8 _ZL22SWELL_SendMouseMessageP6NSViewiP7NSEvent + 600
21 com.cockos.reaper 0x00000001003dfeb0 -[REAPERSwell_hwnd mouseDragged:] + 32
22 com.apple.AppKit 0x00007fff94d650fc -[NSWindow sendEvent:] + 7430
23 com.apple.AppKit 0x00007fff94cfe3a5 -[NSApplication sendEvent:] + 5593
24 com.cockos.reaper 0x0000000100273fc0 -[REAPERapp sendEvent:] + 256
25 com.apple.AppKit 0x00007fff94c94a0e -[NSApplication run] + 555
26 com.apple.AppKit 0x00007fff94f10eac NSApplicationMain + 867
27 com.cockos.reaper 0x000000010000ffec main + 28
28 com.cockos.reaper 0x000000010000ffb4 start + 52