Specific cards freezing and preventing progress?

As mentioned in a previous post, it freezes and won't progress. In my case, around level 350. The edge cards or the random cards at the bottom can be moved, but several cards near the center freeze. Using items on them also causes it to stop. Clearing cache and airplane mode don't work. There were suspicious behaviors before, about once every 10 tries, but I managed somehow. Action quests have long durations, if it weren't for the freezing, I probably could have done it... With less than a week left, I've given up. Would it work on a super-fast device or connection? If anyone has time, please try it out~(*ﾟ∀ﾟ)