[EDIT 10 May 2022 at 08:45 (UTC+0)]:

There was an issue with Minion Hordes that affected the last Monster Island Event. Attacking these Minion Hordes that respawned incorrectly resulted in a crash. Some Alliances also experienced issues with Minion Hordes not respawning, therefore decreasing the overall score potential of the Alliance.

We have now applied the following loot tiers to all Alliances in each difficulty who participated in the Event:
Ranks 1-10 now receive loot relative to rank 1
Ranks 11-50 now receive loot relative to rank 2-10
Ranks 51-150 now receive loot relative to rank 11-50
Ranks 150 and lower now receive loot relative to rank 51-100

Again, we give our sincere apologies for the inconvenience caused. Thank you for your understanding.

7 May 2022

We are aware of an issue with Minion Hordes that is affecting the current Monster Island Event. Attacking these Minion Hordes that respawned incorrectly will result in a crash.

Unfortunately, we will not be able to implement a fix for this issue until the current Monster Island Event has finished. Our apologies for the inconvenience caused. Thank you for your understanding!