Crash on initial launch after installation

[DrBeak1]

Has anyone else experienced this:
So you build & run your app in simulator running 4.2.1 and it works like a charm, perfect. Then when you build & run on your device (3Gs, 4.2.1) the app installs then crashes before launching. It runs fine after manual relaunch but I'm curious what is causing it to crash initially.

Here is my console readout:

Loading program into debugger…
Program loaded.
target remote-mobile /tmp/.XcodeGDBRemote-167-50
Switching to remote-macosx protocol
mem 0x1000 0x3fffffff cache
mem 0x40000000 0xffffffff none
mem 0x00000000 0x0fff none
run
Running…
Error launching remote program: failed to get the task for process 3736.
Error launching remote program: failed to get the task for process 3736.
The program being debugged is not being run.
The program being debugged is not being run.

Help?

EDIT: More information.
I'd also like to add that when I build and run from either the console or the Debugger screen this initial crash doesn't happen. Anyone else experience this?

[wanx]

Got this once when I used my "Distribution"-Provisioning-Profile and tried to install the app with this profile on my iPhone, maybe this helps