Board Thread:Questions & Answers + Troubleshooting/@comment-27021583-20171001020724/@comment-30034293-20171001031518

Unfortunately, set progress has been lost with the update.

However, the sets are still complete-able again (and you can actually request new [older] sets in this version), which means you can get the potions/stamps rewards all over again.

Whether that's a plus or a minus is up to you I guess.

~ Zhisio ~