My personal opinion is that the issue has to do with something in the Hubitat or zwave SDK systems. The PCController software almost never fails, even from across the room, while the Hubitat updated fails on almost every single device. Play it safe, and join a Z-Stick to the Hubitat X-Wave network. Now you can walk around with a laptop or other computer to get the z-stick near the device before you update.
Even if you are not right next to the device, it usually works through PCController which uses older SDK drivers (from what I am told). Distance only affects speed when using z-stick with PCController software.
Good luck.
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