You should not see This in a public release of ppro.
It is a developer tool in The Hidden console.
Hit cmd-f12 for The hidden console and choose debug datatrace view in The Panel menu. Then look for “dog ears” and set it to false. You should not change any other things. That can make ppro unusable. Hope that helps.
Nils Welter
Adobe Certified Instructor – Premiere Pro
CBC Cologne Broadcasting Center
Cologne, Germany