AS3 Custom Mouse Cursor Flickering at 60 fps

Greetings.

I am having an issue where my custom mouse cursor is flickering. It only does this when the frame rate is high (60 fps) and it works normally at 24 and 30 fps.
I would really like to keep this project at 60 fps but I can't figure out how to stop the flickering. I used the code snippets to create the custom cursor and I've tried adding lines to disable the mouse and the mouse children but the flicker persists.

The cursor itself is a shape that I copy/pasted from Illustrator. It does not have any effects like drop shadows or transparency, it's just a simple drawing of a bear.
The file is an Actionscript 3 AIR for Desktop.  

Does anyone have any idea how I can stop this flickering??