A bit of a strange one that I am struggling with. Several apps have notifications (such as changes to mode, presence etc) and these work fine on my S8+. However, on my wife's S8 the notifications appear within the app (under tools, notifications) but there is no actual push notification.
She has her own account, is joint admin on the hub and her app is linked to a presence sensor (hence she can see the notifications within the app) and I am not sure what we need to do to get hers working. Notification permissions are active on her phone too.
I am not sure if this is linked, but there is also a "Hub Unavailable" dialogue that pops up periodically within her app, especially when reconfirming the hub and the presence sensor she wants to connect to just in case they became disconnected.
Sorry if I am being vague but I am very much at the start of my Hubitat journey. It has already taken me to a better place than Smartthings and I am excited for how things develop.