Hi , just opened up my arc pro , attached to my track built myself , worked for a little on digital but at no point did any lights go on , app though is registering laps. Then stopped working for digital , now only works in arc air. Again no lights on the powerbase. All a bit odd ! Has this happened to anyone else? I'm using straight digital lane changer but it's several years old ? Before 2012 perhaps - could this be the issue. I have tried one /2 power sockets re started app etc, have Bluetooth on etc.Could not find a similar question on the forum and think I have a faulty unit . Any help gratefully received !