Mouse turns into hourglass and becomes unresponsive
People running with Weston may have encountered an issue with mouse input where after a few seconds it becomes unresponsive and turns into an hourglass or "loading" icon.
This is a known Weston issue with wl_shell applications.
You can read more about this here:
At this time a fix has not been implemented.
Note that this occurs with anything that is considered a mouse input device and that any other input device, touchscreen, keyboard, etc. will work as expected.