Vibration Alert defect?!

Hey guys,
since the update to F OS 1.5.1 my vibration alert is not working any more. I looked through all the configurations but everywhere the vibration alert is on. The second problem is, that the notifications of several apps do not flash up. Sometimes maybe 10 old notifications of the last week flashed up and then they are quiet for the next days.
Is that linked up or is the first one an hardware problem?
Thanks guys!

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