After Clicking the green flag, press Space to add Cat to the local list for the clone. In Scratch 3, both local lists will be modified but the local list of the original sprite will 'lag behind' one cat (which is expected because the clone executes its script after the original sprite).
This problem reported by videobob in this post https://scratch.mit.edu/discuss/topic/323146/ apple502j opened an issue for it here: https://github.com/LLK/scratch-vm/issues/1798 Scratch 3 link: https://llk.github.io/scratch-gui/develop/#263635669 But it works on an older version of Scratch 3.0 WORKS: https://llk.github.io/scratch-gui/polly/#204520399
