I had this happen to me yesterday not getting the daily rewards and I reinstalled the game anyway since I can't do the mod battles, endless loading screen. I just had to do them from my laptop, it was horrible gameplay. AC 277-321-137
I've been having this problem, too, since the Mod update. Whenever I try to open Dr. M'ak Nar's "Mod Slicing pt. 1 of 2", I get an infinite load screen. I have to delete my data and clear my cache in order to actually do any daily quests.
Ally Code: 244-176-882
Device: Samsung "Galaxy Tab E" tablet
It's not a big issue if I just refrain from tapping that specific quest, but since there's no "Clear All" or "Mark All Quests as Seen" option, I have a permanent red dot on my Quests tab that is extremely annoying.