at file pkg/wildcards/resolver.go,

serverIndex := atomic.LoadInt32(&w.serversIndex)
if w.serversIndex >= int32(len(w.servers)-1) {
	atomic.StoreInt32(&w.serversIndex, 0)
	serverIndex = 0
}
resolver := w.servers[serverIndex]

the condition w.serversIndex >= int32(len(w.servers)-1) maybe wrong?
because it's never use the last index of the list
it should be w.serversIndex >= int32(len(w.servers))