I remember having that same problem. If I remember correctly, it had something to do with the 003EBO file in the Modules folder. So if any of those mods affect that file, it won't trigger the "interrogation". I'm going to wager that the Ebon Hawk HD Re-Texture should be the first place you should look.
And on another note, how well does that Tomb of Azgath N'Dul work with TSLRCM? I've always wanted to try it alongside the TSLRCM but I didn't want to have to reinstall the game for the 50th time if it didn't work out.