I've been trying to find an editor setting for guidance on fixing this issue. Since I updated to Android Studio 3.3, the zoom function in the design view does not respond to either the zoom in or zoom out clicks.

The only way I've been able to "fix" it, is by detaching the file from the window. All of a sudden it begins to work.

I'm not sure if this is a bug, but I wanted to find out if there is a setting that could cause this, before I submit it ( following the order of [the Android Studio Bug Report page](https://developer.android.com/studio/report-bugs).