New pictures for inventory items

[Cerebro]

Well, this should be embarrassingly easy for you modders out here, but I'm a complete noob and struggle with editing a few inventory proto files.

I'd like to change some inventory pictures with new FRM files, so I loaded up F2wedit and added the new FRM from "Tools > Add new inven *.frm". Then I changed the item I wanted via the corresponding inven. frame dropdown, saved, went into the game and... nothing. There is no inventory picture - its invisible.

Whats the problem here?

I'm playing FO2 with Restoration project 2.3.3 and the RPU update v0.8 from burn, but as I cannot get F2wedit to "see" new protos from Restoration Project with the RPU update (because they are in a .dat file I'd like to leave unchanged), I installed a FO2 Restoration Project without the RPU update, changed the proto I wanted in the already unpacked folder there and copied it over into the mod folder. The folder structure is fine, because when I use the file names of FRMs that are already in the game, they display fine.

Thanks in advance.

 

[Cerebro]

So, after several hours of running in circles I figured it out and it was the stupidest problem ever: The filename I used for the new FRM was 1 character too long. As it turns out, 8 characters are ok, but 9+ are a no go and turn the item invisible.