It looks like the BMP file is going to be generated by GGMax itself, at least for the imported models. Anyway, right now they are working on fixing some object library bugs.
About scriptbank, GGMax works with the folder placed on the root files folder.
I think they want to test GGMax with just stock media, for that reason GGMax is removing non-stock files. Nothing wrong with this, atm.
Nowadays is better to have the entitybank folder with just the stock media, plus the project files you are working on right now, so before updating, just move your project folder to a safe spot. imho.

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