settings now saving

Has anyone else noticed on the latest build V21 that settings aren't saving such as colour changes? When I make edits, save file and then go back into it, they've reverted back to how they were before. Before I speak to Articad, want to check its not just me doing something silly - I'm still trying to understand this new layout for material settings and finding it confusing

Doing this from the very start! In materials save and load back in if re using the file.

I don't have this problem, whenever I open an old design all the textures are the same as before. I don't save the colour settings of each design either.

The odd time something has reverted has been due to me moving a custom texture in the library.

no problem for me.
Im on v21b42