[Mike Copioli]

This happens to us once in a while. I am not exactly sure what causes it but this is what fixes it for us. First try undeploying the code then reloading it for debug. If this does not fix the problem make sure that the kernal tasks are running and not pending, if they are not running, reset the cRIO and reconnect. Do not try to debug until the Kernel tasks are running and can be seen in the tree view at the lower left. If this still does not fix it try restarting windriver and folowing the same steps.

I hope this helps.