At the moment seems that Alexa and Voi is not working as expected for many. Opened a jira support and seems that they know this issue;
About GarageDoor, is this a relay switch? I did a test using also “scope” from reactor and seems that it does nothing, at least I can’t use it in the same scene where I have a relay switch from Switchboard Plugin and I can’t control a phisical realy.