I have been having an issue when I load multiple models into Maya. It happens when I import a model, say if it has the same name or shares the same transforms as another model.

I have tried a number of things, when I tried to freeze transformations I get an error saying transform x is locked, I tried to unlock but it keeps reverting to being locked.

I have tried to duplicate the models and delete the original but the same issue happens with the duplicate.

I import a model but when I import another model the second model deforms or parts of the model wont show up, for example the head will disappear.

Is there any way to get around this. I have tried Youtube and Google but I am not getting very far, maybe I am not using the right search terms