Ossmooth Import Error

Hello guys,

i've created a topology optimization an now i want to import the result in hypermesh again with Ossmooth. The import works fine but the adjacent elements splitted suddenly (seen in the pictures). I tried all the non-design-elements-processing parameters, especially turning off 'split all quads', but nothing works.

What can i do to prevent this splitting up?

Thanks for the help.

Greets Tensa