[PLEASE READ] Save Game Corruption

I'm not sure if this helps, but I fixed my corrupted save by removing the lot using sim4 studio, one thing I did notice, while I was doing this, it failed to record the objects that were in the lot, this explains why was i was getting a error 800, after this I did the following:-

Removed the save game custom texture, using sims4 studio, it dramatically reduced the size of my save game file. 

I also reduced the massive lots that I downloaded and replaced them with much smaller version lots.  When I was installing the new lots, I noticed I would get crashes in the game if the objects were outside the lot size, using the move object cheat

I've been playing with this world for about 50-100 hours and I currently have over 700 sims in the world and about 20 rental lots, since reducing the size of the world and I've had no more problems with the save file, touch wood.

The bug looks like it's linked with rentals, but if was linked with this, then why as my current save not just corrupted  again?  I might be just speaking rubbish here, but the save game custom textures, inside the save game file, since removing them, I've had no problem and loading times are lot faster.