WhatsApp notifications not displaying on AW S2

[Chucklevision]

Whatsapp notifications are longer appearing on my S2 Apple Watch.

They used to without fail, but it stopped over the weekend (I think). I’ve got the watch to mirror notifications and they’re turned on on the phone.
Watch is on OS 4.1 and phone running iOS 11.0.3.

Anyone else experienced this?

 

[OllyM]

Is your watch getting other notifications? I've had mine stop receiving any notifications a couple of times and restarting the watch and phone fixed it.