Array tools error when performed on group

I noticed that when you use “array has number” on a group of objects, even if all the objects in the group have this array, it throws an error. This is interesting because it does not throw this error with my custom implementation of this method.

This is may be a issue with the extension. Could you instead click on the “Report and Issue” on the array tools screen (click on Array Tools in the list of extensions in your project)?