Steps to reproduce:
1. Open attached Unity project “ButtonAnimation.zip” from Google Drive link
2. Stay in Edit Mode (do not enter Play Mode)
3. Move the mouse around the Editor
4. Observe Button element in Game view
Actual results: the animated Button moves in the Game View in response to mouse movement while the Editor is in Edit Mode
Expected results: the animated Button should remain static in Edit Mode, animation playback should only occur after entering Play Mode
Reproducible with versions: 6000.6.0b1, 6000.6.0b7, 6000.7.0a3
Can’t test with versions: 6000.0.81f1, 6000.3.21f1, 6000.5.7f1, 6000.6.0a7 (UI Toolkit Animation not available)
Tested on (OS): macOS Tahoe 26.5.2 (M1), Ubuntu 24.04