/testfor problem (Snapshot 16w05a)

/testfor problem (Snapshot 16w05a) - Worried Women Talking at Home

/testfor @a[x=1016,y=56,z=1016,dx=984,dy=57,dz=984]

When I run this command in a command block, the output is blank, but I verified all tags but I can't find the problem

minecraft-java-edition minecraft-commands

Pictures about "/testfor problem (Snapshot 16w05a)"

/testfor problem (Snapshot 16w05a) - Woman Comforting and Supporting Friend

/testfor problem (Snapshot 16w05a) - Person in Black Pants and Black Shoes Sitting on Brown Wooden Chair

/testfor problem (Snapshot 16w05a) - Man in Black Shirt and Gray Denim Pants Sitting on Gray Padded Bench

Troubleshooting Snapshot Issues using Logs

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Images: Karolina Grabowska, Karolina Grabowska, cottonbro, Inzmam Khan