I am having several problems since the last update.
#1 items on store greyed out and not able to purchase with points.
#2 app freezing and crashing randomly.
#2(a) app freezing when being rewarded points while reading.
#2(b) app crashing while reading after closing and clearing memory after it has frozen once.
#2(c) have to go to app info to "force stop" and reopen to fix issue.
I have a Samsung Galaxy S8 with most recent android update.