I have two echos with 2 different Amazon accounts using the same isy. At first I had the same problem, unfortunately I can't remember what I did to fix it.
Eric
Yes roomie needs to be running for triggers to work. I have a old iphone 5 which can be left running roomie all the time. One thing I wanted to accomplish it to turn everything on or off in the theater
room using the kpl buttons. I purchased the network module but after a few hours of trying to figure out all the codes I gave up. With the triggers everything was working within 5 minutes.
In the latest version of roomie they have isy triggers. You can can set roomie to watch a light and run any roomie action when
that light is turned on to a specific brightness. This allows me to use ISY to control AV equipment, Hue lights and sonos.