I have to exactly same input_booleans with different names. The other I can call “Alexa, close/open …” or “Alexa, turn on/off …”. But the other one works only with “turn on/off”, otherwise Alexa says “… doesn’t support that”.
How is this possible when the input_booleans are made exactly the same way?
As a test, I’d try changing the entity that isn’t working to a name that doesn’t use word “blinds”. My Alexa (using emulated hue) gets confused between all my x_lights, Y_lights, z_lights.