command_categories not expanding on page load

[felixjones]

Issue occurs for myself on the following browsers with Windows 10 x64; Google Chrome 48.0.2564.97 m Internet Explorer 11.63.10586.0

Steps to reproduce; Navigate to any doc and the command_categories on the left-side will remain closed, although the expansion arrow will indicate that the category should be open.

Clicking the category title twice will reshow the contents - indicating that the state is correctly set as 'expanded' but the contents are displayed as 'hidden'.

Chrome; Internet Explorer 11;

Firefox (Expected result);

Safari, Chrome and Firefox for OS X also get the expected result (Issue seems to occur only on Windows).

[BSVino]

Thank you I've noticed this one too.

[felixjones]

I just noticed that this has started happening on OS X Safari as well