Wasteland not coming up on playlist rotation

Me and my friend have been playing unranked standard online now for about 4 hours and not once has the new map come up in the lobby. The ratio must be so bad!! We're searching in all regions too. I mean, I know there's a few of maps in the rotation, but like when Utopia Colleseum was launched, aswell as the dusk version and Urban Central (night), they come up so frequently still.

Anyone else think this too?