Problem with support bar in anycubic slicer

I made a 4"x4" open clay cutter sq with a support bar in the middle but when I went to slice it in Anycubic slicer It gave an error and not complete the slice. When I removed the support bar, the error went away.
Any thoughts??
It is for cutting & making tiles

Was this in the main site or beta? If you haven’t yet, try it in If that doesn’t work email a link to the cutter to us by clicking contact us or sending it to support at cookiecad.