model importing mess

I have 2 maps with the same imported file.

Map 1: Has the model imported and when i load on we, the model works perfectly.

Map 2: Has the model imported and when i load on we the model appears as a green black box (did restart we).

But when i load map 1 before map 2 the model works perfectly on both.
I need map 2 to just load so model works perfectly any help?

It loads fine in map 2 after you've loaded map 1 because the model files are saved in the temporary imported folder and are thus available to all maps opened in that instance of the WE.
Make sure you have the texture imported and in the right path or upload the map for one or more of us to check. If they are the same files in the same paths, there is no reason for them not to work consistently.