I have experienced the same problem in which I finally give up trying LookOut connection browser. After few follows, you can not even see the display on the screen anymore. Close the connection browser and reopen again then everything goes fine, but it will crap out again after few follows.
Thanks for the work-around - I found that answer the first time it screwed up. I believe that the project file is faulty because the NI demos that I have tested do not fail - which leads me to believe that the project is corrupted in some manner - which should be fixed, otherwise, what else is waiting to fail. I would like NI to address this problem and solve both our problems.