After the patch the mouse sensitivity is low, the cursor moves at a snail pace across the screen during the log in and arena selection areas. In game, the mouse sensitivity is very high, the cursor moves so fast that it's hard to click on anything and you have to move the mouse very slowly and precise just to get the cursor over whatever you want to click on.
Hardware wise, nothing has changed on my end prior or after the update. I'm using a Microsoft Habu mouse, which has been the same one I've been using for about 3 years or so. In Windows and all other apps, the mouse works fine.
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