Alexa virtual switch showing as dimmer

[stephack]

Unfortunately this is a known issue. Take a look at this thread for details.

Alexa unable to trigger switch from Routines

Put the switches into a group via either Hubitat Groups or via Alexa Groups and then they will work when you add them to a routine. It’s a quirk of not having an Alexa Skill that not everyone runs into, but I certainly do. Adding to a groups always solves the issue.