Recently updated to 2017.2 and my ui masks stop working. In editor items are masked but after i press play -> items are not masked anymore and i can see them whole.. (i used mask and rectmask2d to check and none are working). Can anyone try if masking working in test project? In worst case i will reinstall older version. EDIT: Please ignore/remove -> after conversion to new version unity added strange materials to my Text elements and this was messing all up.