7.1.5: Crystal Eggs artwork missing on iOS

Platform, device version and operating system:

iOS

What you were expecting to happen, and what actually happened:

For the second week in a row, the glory troop has no artwork on iOS. None of the previously missing artwork has ever been fixed.

How often does this happen? When did it begin happening?

This bug bean at the end of March and it has never been fixed, in 6 months.