For the past few weeks I've noticed that some of the icons grouped together in folders on my home screen go missing. Others stay.
I can re-add them to the folder, where they stay for a while, then disappear again. This is very annoying.
I originally thought it was related to moving apps to the SD card, but I've avoided that and the same apps go missing day after day.
Examples:
Pokemon Go
Fallout Shelter
Star Traders Elite
Facebook
Facer
Alto
Netflix
What is going on?