Animation in widget crashing watch?

Hi,

I have a side-loaded widget that causes my Fenix 3 HR with 3.20 firmware to crash. That is, the screen goes blank for a second and then the Garmin logo appears as the watch reboots. The widget has an animation that runs for 2s when it is displayed. My best guess at this stage is that the crash is caused by exiting the widget before the animation has completed. Is this a known problem, or has anyone else observed a similar crash? Thanks.