JCEF Browser freezes the next day

I'm using a JCEF Browser to show rendered HTML output in a plugin.  However when users keep their IDE open over night, the next day the JCEF output panel is frozen and the only way to revive it is to restart the IDE.  Anybody has experience how to keep JCEF browser panel alive and kicking?   Full details @ https://github.com/devoxx/DevoxxGenieIDEAPlugin/issues/698