We have a strange behavior in our store in the mini cart. If I add some items to cart then navigate somewhere and after couple minutes content of mini cart disappears. If I add something again to mini cart - I will see all my previous items again.
Our team checks https settings (all store under https), cookie settings, session settings, cache settings etc. Nothing helps. Same thing always. Any thoughts what it could be?
M2 version: 2.1.2