Just a quick update!
We're working on a fix for a sneaky bug that got in regarding the new Mission difficulties.
In 1.9.3, we introduced new Mission difficulty tiers, in which your progress would be carried on to the next event when you've unlocked a tier. For instance, when you complete Hard for Ghost Mine, you will unlock Nightmare for all versions of that event.
At the moment, that's not happening, but we're working hard to find out why and get you a fix as soon as possible.
If you've encountered this bug and can have a spare moment, please reach out to our support so that they have a record of your Player ID.
You can reach out to support at https://pulse.ly/84gwg9nlpt
Thank you so much for your patience while the team resolves this. We appreciate you!