Flipped faces after importing

when i import my object to UE4, it has flipped faces. Can i somehow flip them to right direction? I tried reverse faces in Sketchup, but after importing to UE, model has broken textures (when imported with flipped faces, it has normal textures)
I am using my custom model ripped from n64 game using LemD3D9, converted to dae using blender and edited in Sketchup