Buttons doesn't work with image in domain template

In template, I define a utter like below
- text: Can you log in?
  image: http://xxxx.png
     - title: Yes, I can
       payload: "/inform_done"

but the buttons can’t be shown, if I comment out the image, then the button can show. I want show both image and button same time, how can I do?

hi @pngfei - welcome to the forum!

this should be possible. which channel is your bot connected to? Is this FB Messenger, slack?