None of my automated scheduled jobs are being run (94149)

I am having a problem that is preventing all of my scheduled automated jobs from running. I am able to run all of them using the test button in the automation window. It is just when they are scheduled the problem occurs. If I right click on the scheduled job and starts it, the job then runs for a short period (15 – 20 seconds), then stops. But nothing happens…no email at the end of the job as would be expected or happens when running the job manually.
 

Scheduled jobs are being run by a machine different than the one the user is running them manually in. A message pop up is occurring when TDA is launched on the machine running the scheduled jobs.

Manually launch TDA on the machine that is running the scheduled jobs and make sure there are no message pop ups occuring.