text fails to render unless window is resized

[ndearns]

The text in the canvas.rs and file_navigator.rs glium examples has a habit of disappearing. It comes back if the window is resized. The underlying widgets are still responsive. Here's an example of a directory that's selected, but no text is visible:

[ndearns]

By the way, this is in Linux on a Chromebook.

[alvinhochun]

Does it happen with other backends?