Many add-ons cause this problem. Try disabling your add-ons; if it works, you know one of them was causing the issue for you. You can then re-enable them one-by-one to isolate the one causing the problem.
Many add-ons cause this problem. Try disabling your add-ons; if it works, you know one of them was causing the issue for you. You can then re-enable them one-by-one to isolate the one causing the problem.