Dinosaur Escape in No Escape for Sanbox?

[THartmann9374]

Hello all,
I am making a sandbox which I changed settings. I set to NO ESCAPES. I made genomes to 100% and all traits to 100%. Allosaurus somehow escaped from pen. The pen is not broken. Why is Allosaurus still escaping?

Thanks!

 

[SotF]

Make sure you have a complete pen...there's been some recent changes to the rocks hitboxes so they don't always work as well as a barrier anymore