To find an exact location for code who causing jump to this int 3 is a long steps. But for the best bet, try to find this following codes before the int 3 (current breakpoint on your screenshoot):
push ebp
mov ebp, esp
This is the beginning of a routine. Move selection into 'mov ebp' code and give a breakpoint on that position (refer to your debugger about how to place a breakpoint). Then re-execute the cameditor. If this is impossible, make note to the current selection's location address (the'mov ebp' was) then reload (or reset) cameditor from your debugger. Make normal execution until debugger stop on the breakpoint you was made. Now use single-step or trace function (refer to your debugger how to do this) until you reach the 'int 3' as shown on your screenshoots.
Complicated. Well, please do not try it at home boys.
In reality, doesn't matter who's
right but most important is who's
left.