White Castle bug?

[Hoppo]

My White Castle is showing an exclamation mark with a crown. Does anyone know what this means? Or is it a bug? It only showed up today.

[FlyHard]

Same thing here...

[lashy]

same here

[Lord_Rene]

It means that the castle need a king or a queen :P
But seriously i think its a bug.

[Randy]

same with me as well

[Ghrish]

Here too, also lost 50 settlers belonging to it.

[TheNemcik]

same here

[Stavitel-Jerry]

Exclamation mark with crown means leader camp. White castle is always leader camp. I think this icon is hardcoded to this building independent where is staying.