Resource Harvesters won't move

I've built 3 resource harvesters and tried to set up routes for the 3 of them to other star system. Only 1 of them is actually moving to its source then returning to its destination.
I've tried several times to reapply the source planet and destination planet with the other 2 ships but they still won't move.

I think i've sorted it. for some reason each harvester was setup as a fleet of 1. I disbanded all the fleets and they are now moving. I hope this helps anyone else.

Thanks for the heads up. There is an issue in the client currently with commanding a fleet to do some of the actions. We have corrected in in the client, and should be pushing a new build to Apple in the near future to fix the client issues we have encountered.