Remove styles from model idw

[Obiwalex]

I have a problem with inventor 2015 (but it already showed me since 2014) that I can't fix and I can't find anything on the net: I tell you what I do and what happens
1-creo a new idw file going to take the default model that I did and saved in the template library.
2-I see a notice as shown. 3- Once clicked on "ok" my model appears to me but with lines completely different from those of the original file (of the type with different thicknesses)
4-I close everything and go to change the setting of the project file with regard to the library of styles from "reading-writing" to "reading" (or vice versa but nothing changes)
5-I open the file again but I always have the same situation.

the only way I found to overcome the problem is, once the file model is opened, import a file ".styxml" (which I had created earlier) from management->editor styles->importa.
In practice I would like to create a new file from a model already preset as it serves me.
is there a more effective and fast way, without it having to upload the .styxml file every time?
thank you in advance to anyone who can help me.

 

[Ilario]

the message basically says that the styles contained in the .idw are different from those in the style library.
first, first you have to set the style library in the project as reading/writing,
then open the .idw file model to edit
modify it as you like, copying and renameing the styles you want to change
once set everything you have to save the styles in the library
so the error should not come out.

in practice .idw styles are proper to the file, but at the opening it compares them with those saved in style bookstores and if they are different (the same name, but different settings) you exit that error.