I am having exactly the same problems - alarms aren’t working, it doesn’t work as a CGM, constantly saying signal loss, and have to scan it every time. I’m an iPhone user, not android.
I’ve tried to download it/lopen it from My Purchases and it won’t let me - is anyone having the same issue? I’m abroad, so can’t phone the UK helpline number and am quickly running out of strips for my backup meter. Very disappointed in Abbott and the lack of customer support over the last 3 days.