If the panel state contains different content sizes and adaptive content and fixed alignment at the bottom of the browser are enabled. When the panel state changes, the bottom alignment coordinates will incorrectly move down.
Hmm could you email support@axure.com with the .rp file you’re seeing the issue with? Any additional details you’re able to provide, e.g. the specific page/widget, if this broke with the latest build (4135), etc., will be helpful as well. Thanks!