Apps Keep Getting Logged Out

[legaleye3000]

Recently, many of my apps get logged out and I need to log back in, just as GMail. Any reason this would happen? I have an iPhone X on 11.3. Thanks.

 

[Zoisite]

The same issue has been happening to me, so far the following apps have had this issue: Pokemon Go, Hulu, and Netflix.

 

[ser968]

Happening to me after upgrading to 11.3 (from last version of OSX) with virtually every app on my phone and it is making it almost unusable. Everything from iCloud to Outlook to Facebook. Seems like a bug is resetting my phone. Also my phone randomly restarts on its own every once in a while - not sure how/why.