Siren not working with my iPhone /smarthings

Hi Folks, the situation is that when I use my Android tablet to set my alarm it all works perfectly. When I use my iPhone to set alarm system everything works apart from the Sounder/siren? there seems to be a glitch between Smarthings and Konnected Apps on my iPhone?

I think I’ve got this issue. My siren works fine, I’m able to test it and it’s loud AF. The issue though whenever we have the system armed an alarm will not sound the siren. I’ve attached screenshots below.

Same. Switch functionality doesn’t work with iPhone