Relume Pro Multistep Forms Issues with Checkboxes and Buttons

👋 Hi, I started using Relume Pro for MultistepForms via formly now. I have formly setup and working but using relume Multistepforms no Checkboxes or Radio Buttons respond - even the step-back button is not working - I tried multiple Multistep templates and got always not working buttons. Btw I just got formly Pro and their templates work.. Did the formly-attribute-system change? New to this, Please help! Best, Bilal