Could you please share your crash identifier? Crash identifier
I know that a few iOS users are experiencing issues with effects. But unfortunately I am not able to reproduce the crash and fix it.
If possible, could you make a screenrecording of the actions you did before the crash? So start recording, then open Hue Essentials (please close it first) and try to crash the app. Please upload the screenrecording to somewhere like YouTube or iCloud and share it here. I would really appreciate it.