Just to add to the numbers here, I have had the same issue on Android (GS8, app and OS up to date). I contacted support via Live Chat last night (Australian Time). Ernie (support) was really good, and we walked through every option including cold boots of the base station (I had already done that), clearing app cache and data, and deleting to app to reinstall a fresh one. The app was then not available in the Google Play Store for me to install - presumably related to an attempted fix on this (or possibly just a coincidence). It reappeared in the store this morning, so I reinstalled the app an hour or so ago (which included logging in from a clean install). Still no good. Like others, I am getting e-mail notifications, but no push notifications from the app.
(I have just sent a log file as well)
The development team released a cloud fix late last night that resolves this issue. Thank you for all the confirmations that the fix is now allowing push notifications to be received.