@Laura, please assign back to any of us in the CC line, when you have confirmed this bug and we'll figure out who will take it on.
Marking as P0 since this appears to break the upcoming version of Zoomtext which should be released shortly.

Chrome Version: 61
OS: Win

What steps will reproduce the problem?
1. Start Zoomtext 11.6 private beta.
2. Open Chrome 61 and navigate to any site.
3. Notice that magnification, text reading  and cursor tracking don't work.
4. Start Chrome with the "--force-renderer-accessibility" command line flag.
5. Notice that the above features start working again.

Possible cause:
When the above command line flag is not specified, accessibility APIs in Chrome are off by default.
They are turned on automatically when a screen reader / magnifier, or another assistive aid, is detected.
For some reason, Zoomtext 11.6 beta is not detected, contrary to earlier versions of Zoomtext.