After opening Layers dropdown when Account is selected, the Account dropdown overlaps with the Layer's dropdown, Refer attached video

Steps To Reproduce:
1. Create a new Project
2. Select "Layers" from the upper right corner of the Editor
3. Select "Account" besides the Layers

Actual Result:
Account's dropdown overlaps with Layer dropdown.

Expected Result:
On selecting Account, Layer dropdown disappears and Account's dropdown opens up

Occurring on:
2020.2.0a7, 2020.1.0b5, 2020.1.0a22

Working fine:
2020.1.0a21, 2019.3.7f1

Environment:
macOS 10.15 only