Advanced filter authors now have solutions to handle any sized images....but beginners and novices will still have problems without gradient components reconfigured to automatically map any sized image input....
Suggest that gradient components be updated to automatically map any sized image and all affected filters in library be updated as well. With this program where it is right now, the square image limitation on gradient components is way overdue to be addressed and remedied, IMHO....
Steve
"Buzzards gotta eat...same as worms..." - Clint :)