Powered Up - Issues in LEGO Train Tech Posted September 13 · Edited September 13 by Brickster12 6 hours ago, Perolav said: Downloaded new firmware today. Tested it with 3 trains and it works perfectly I've installed the new firmware as well but there are still issues: Fixed: Multiple hubs in BLE network with ONE handset works now in all desired combinations (one common channel or multiple channels). No motor stuttering/going mad. New issue: 1 hub + 2 handsets (on same channel): Handset that was added to BLE network first is fully functional. Any additional handset added to network is without any function. 2 or more hubs + 2 or more handsets on same channel: Same as item 1. 2 or more hubs + 2 or more handsets on multiple channels: Same as item 1 - except channel select button on handset changes between available channels. It actually does not matter which handset is on which channel - the one added to the network first always works, any additional one does not work. I tested that systematically with all handsets I have and can exclude that the handsets have the issues. It only depends on the order of addition to the the network. All these cases did work with the previous firmware version but had the issues of motor stuttering/going mad - hence this looks like a regression issue or the result of a quick fix (solving motor stuttering over preserving multi-handset functionality). So actually you currently cannot run two trains with two individual handsets simultaniously. If you buy two PU Train sets you quickly run into this situation. Does anyone confirm this?