I was helping a friend set up his Astroberry rig, and we got everything in place, and when we went to start guiding, it failed and we got the error listed below. His mount is a SkyWatcher Star Adventurer.
  

At first we thought it may have been trying to track in DEC, so we turned off the settings shown below, which should be turned off for his single tracker mount anyway, right? We still got that error message.

However we started PHD2 up and it did not have any problems guiding, it worked perfectly. We tried the Ekos guider one more time and got the same error massage again.

So what would cause the Ekos guider to display that error message?
Thanks.


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