I have the problem that often when I wipe down the info line all push notifications disappear. I don't touch "Clear all" - they disappear by themselves. Also I noticed that they fade out horizontally while after manually pushing "Clear all" they fade out vertically.

Only way to stop that is a manual reboot. Anyone else having that problem?

Wery weird and uncommon problem. I suggest to perform a firmware update followed by a factory reset and everything will be good.