@BlynkAndroidDev, got a strange issue here:
today i observed, that all the projects on my account have one way communication only: from app to hardware. if i press a button in the app, it works correctly on the hardware. but if i send a value (to any widget) from hardware to app, it never shows. the hardware status indicator (near the play button) always shows the hardwares as offline, though it is online.
all these projects were tested and used long time ago. the issue is present since yesterday or today.
i also logged in with a friends account, and his projects worked correctly, both way communication. the problem is present only with the projects of my account.
the phone is s5, android 6, cloud server, 2.17.0 app (also reinstalled, restarted, etc)