Cannot slice multiple models

[sjj22 0]

Hello

 

I am trying to multiples of an ethmoid bone on my U3E, using the latest version of Cura.  I am able to slice a single bone, using PVA supports and a prime tower.  However, if I attempt to slice multiples the slicing fails.  No specific error message is given, the process just fails and the 'slice' button returns.  

 

I include the project file for 4 bones, which consistently fails

 

Hopefully someone can help

 

Thanks in advance

 

Steve

UM3E_Ethmoid reduced 50% binary.3mf

[sjj22 0]

BTW, this only seems to happen with this particular model.  Other stls seem to work fine.  I have tried simplifying the mesh and have also checked for errors using mesh tools and Netfabb, but this does not seem to help.