This conversation has been merged. Please reference the main conversation: Photoshop CC 2019: Transform/Resize is constrained by default - Want ability to go back to legacy behavior
Bug 1: The default is always ON for the maintain proportions option. Clicking the "locl proportions" button doesnt seem to work . The default used to be OFF.
Bug 2: SHIFT now does the opposite - it unlocks proportions while transforming.
This happens after selecting part of a layer where some pixels are drawn ( it doesnt matter how you select them), when you enter transform mode using CNTRL+t.