If the tr gives return code 8, will all objects except missing objects be imported in PRD?

I imported a tr in ECP/Prd. and it resulted in return code 8 in ECD/Dev.

I checked the logs and found error while generation of program screens.

Two objects were missing and I corrected/included just those 2 objects in a separate tr and imported in ECP.

Is it correct? Will my previous objects be present in ECP?

Will all the objects in a TR excepts error objects be transported to ECP if return code is 8 (or) no objects gets imported if return code is 8?

Please explain.

Thanks & Regards,

Sudha.