PictureSequenceMemory activity crashes after two rounds with 6 images each

[IgorMatias3]

The output of the debug console is this:

E/flutter (19446): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: RangeError (index): Invalid value: Not in inclusive range 0..12: 13 E/flutter (19446): #0 List.[] (dart:core-patch/growable_array.dart:264:36) E/flutter (19446): #1 PictureSequenceMemoryState.getPictures.<anonymous closure> (package:cognition_package/src/ui/ActivityBody/rpui_picture_sequence_memory_activity_body.dart:250:30)

What is happening is that the available images URL are 12, but in

List<Picture> getPictures(int start, int end, int num) => List.generate( num, (index) => Picture( name: index.toString(), urlImage: urlImages[index + start], ), );

the urlImages is being asked for the position 13, which does not exist.