Since upgrading iphone 7 to dji go 4, 4.1.18 the enhanced warning zone screen does not allow me to tick the two checkboxes, then confirm, so that I may fly within five miles of a class G airport as I have done many times. The display is somewhat garbled, only showing one checkbox, which, when checked takes me to a privacy screen terms and conditions which when backed out of, returns me to the enhanced warning garbled screen. Can't fly with that. Have called DJI support who said I should hear back from them about this issue within 24 - 48 hours. It appears to me to be a bug in 4.1.18. Anyone else have this issue? Also tried my iPhone 6 running ios 10, same results.