importar 3d obj full

[yandry]

Hello, I have a problem, some way or suggestion, how to import the complete obj project, I notice that in blender it is fine, while in zmodeler3 some parts do not appear

https://ibb.co/zhFGKcp
https://ibb.co/HKxZ8g8

[Oleg]

The object might be facing to the inner side.
Alternatively, export/import this object by parts - one after another.