On Mac only (specifically, OS X 10.9/Mavericks), an application crash has been reported under the following conditions:
- On a page with a drop-down selector, click the drop-down to view the options.
- Click outside the application window, while the drop-down is still open.
- Roughly half the time, the application crashes.
This defect has been traced beyond the application itself into the underlying subsystem (where features like drop-down widgets are managed). There is no direct workaround other than to avoid clicking away from the application when using a drop-down box.
(A later version of the subsystem in question apparently resolves the problem, and is expected to be released with the next major version of SimUText.)