The support icon is working correctly now within canvas.instructure.com and k12.instructure.com. You should be able to move it on the right side of the page to your preference. If the inability to move the icon returns, please give us that feedback.
As a reminder to our FFT users, the support icon serves as an opportunity to get in-app support for features and functionality for our many, many FFT users. Because this particular environment does not have dedicated support personnel, this provides crucial support capabilities for those who need it.
As always, thank you for your patience and understanding, and thanks for utilizing Canvas Free-for-Teacher.