Mode: force_next
Version: 55.0.2844.0
Reproduction Steps: 
1. Enable CVox Next.
2. slides.google.com, Braille mode or not doesn't matter.
3. new slide.
4. insert>>video.
5. In the box that appears, search for "coke" and press enter.
6. down arrow to the first video with "diet coke" in the title... it should be about four or five from the top.
7. Press enter to insert. Observe that nothing happens.
8. Press tab to locate insert... observe that the user is not moved to the insert button.
9. Use CVox object nov to locate insert button and observe that insert state appears as "disabled".
10. CVox+Space to activate, and observe that the user is returned to the slide show without any input as to what occurred.
Expected: Pressing enter ought to have inserted the video or brought up some options or something. If the video is incompatible, it should not have appeared in the list to insert. If the video can be inserted, the insert button ought to be in the tab order, and ought to have a non-disabled state. Regardless of the outcome, a user ought to receive some sort of a message or feedback about what is ojjurring... whether the video is not compatible and can't be inserted, whether it has been inserted, or what. And CVox ought not to allow the clicking of disabled buttons... unless the button wasn't really disabled.
Actual: The button was disabled, CVox allows me to click on it, and no user feedback is provided.