I am looking into multiple things in C2C in the code. I will look at OOS errors in the future. Funny enough, there is an Oblivion Enboost version that works for C2C (Oblivion does use Gamebryo) and eliminates many memory errors. I use Pit's map with space for reference as well as many options like revolutions (and civilization additions mod mod). It also allows borderless fullscreen, which works just fine, you just have to disable it as the topmost layer. I have no idea if it affects anything, as it does call for a DLL recalc on loading save. I autoplayed the game for over 7000 turns before the game crashed due to a memory error, with the entire map revealed, graphics paging on, and no viewports. I do NOT use the memsaver option from the ini. Everything seemed fine on the surface, as it played like normal to me, but it requires more testing. It also eliminates almost all issues with loading a save while in an active game and worldbuilder. I also use Process Lasso, which helps, but not even close to as much. So feel free to ask via Discord PM/DM if curious. I do not wish to give a link in case of unforeseen issues. I will also give my config file for Enboost.
There is no download as I am still working on this. I have to edit the lists and focus on a select few "maps". I have the XML files separated to edit and queued up, while also watching the Github for updates for the files I use. I was going for a simpler release before, but everything was lost. When there is a download, it will be in the first post.