Well, it is still there, as reported here. However, when I ran into it in alpha 6, and I then saved and reloaded, the workers started working again (see the same report). @Vampire737, you might want to try that when it next happens.
Well, it is still there, as reported here. However, when I ran into it in alpha 6, and I then saved and reloaded, the workers started working again (see the same report). @Vampire737, you might want to try that when it next happens.