Problems with mapping after merging

[LeCorbusier]

hey guys, hope you're all fine.

my problem happens when I try to  merge a scene to take some models, the mapping appears poorly scale and when I open the scene I see that everything is fine, the problem occurs after merging process. I'm completely new with Corona. I attached some images....Using 3ds max

[sprayer]

I believe it's not corona relative, maybe your new scene in different units so check your uvw and textures, world space coordinate can change projection, also if you are using triplanar map.

[maru]

What is the difference between the two attached images? Where should we look?

[LeCorbusier]

the book's covers are poorly scale.

[romullus]

It happens if models are textured with real world scale mapping and are merged into different system units scene. My suggestion would be to open scene containing books, turn off real world scale mapping on all textures of your books and save the file, then there should be no problems on merging those models anymore.