Siri cannot make Whatsapp calls

Hi All

Suddenly Siri doesn't want to make WhatsApp calls anymore. Everything was working fine and about a month ago when I say "Hey Siri, call my Fiancé with WhatsApp" or "Hey Siri call "Dan" with WhatsApp" it responds to me with the following. "Sorry I don't have a WhatsApp number for "Dan", which number for "Dan" . Then it lists all the numbers I have for "Dan". I respond then with the number that's used for WhatsApp but then it makes a normal Cellular call to the person

Scenario 2: I say "Hey Siri, make a WhatsApp call, it the prompts me for the person I would like to call, when I say the Name it makes a normal Cellular call to the person instead of a WhatsApp call

I used an iPhone 6s but changed over to iPhone8 today and still its doing the same thing

I checked all settings to make sure Siri is allowed in Contact, WhatsApp etc., even uninstalled WhatsApp and reinstalled but still not working