object looks weird in cura

[chiucorudo74 0]

isave and stl of this in cura and create  a gcode of this and now i wanna try edite or generate another gcode cause need to change retraction setting and now all the stl open like this

and if i opend the stls on another slicers works perfectly whats wrong??

[kmanstudios 1,120]

cannot tell without looking at the file itself. But i am curious:

 

If you had the original to slice and save from Cura to begin with, why export it again?