When I import a Piston and do not use all the devices, the remaining unused devices are shown as “{:xxxx4:}”. Is there a way to delete these unused devices?
I accidentally first posted this at Community SmartThings, so it may show up twice here and there.
I go into edit that particular line… then put a check next to a similar device, and then immediately uncheck it, and then save. Voilà
Thanks. I tried all sorts of things, but don’t think I tried that. I was using a small snippet for test purposes, so re-imported it again, reassigned all devices, then unchecked the ones I didn’t want to use. It only took a couple minutes for that “fix,” but that was still longer than doing what you suggest.
Thanks again.
Sure thing, glad to help!
Feel free to put a checkmark 
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