3D Printing Feature Greatly Increases Lot File Size Even After Objects Are Deleted

Bug Reports
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  • Game Version: 20260211.10377.W

  • Platform: Steam windows

  • Mods: active
    :round_pushpin:If you have used mods before, please list them:

    1. PL | WAVE Coffee Table by platinumluxesims
    2. heemon_natural_250620_EAFCF60F [currently in game]

  • Hardware Specifications & Operating System (OS version, CPU, GPU, RAM, storage…):
    CPU: AMD Ryzen 9 7900X 12-Core Processor, 4.70 GHz
    GPU: 12 GB
    NVIDIA GeForce RTX 4070
    RAM: 64 GB
    Storage: 2 TB

  • Steps to Reproduce
    I’ve noticed that using the 3D printing feature dramatically increases the file size of a building preset, even if the printed object is never placed or is later deleted from both the lot and the game.

    In my case, I experimented with changing the appearance of the first‑aid kit to a smaller custom version using the 3D printing option. After several attempts, I deleted all custom objects from the lot and removed them from the game entirely becasue the meshes looked messy. When I uploaded the lot to Canvas, the file size had jumped from 1 MB to 20 MB, despite no custom objects remaining.

    This suggests that leftover data (mesh, code, or other asset remnants) is being stored in the file even after deletion. If this persists, file sizes will grow very quickly and become unmanageable. I’ve also noticed that some custom homes on Canvas have unusually large file sizes, which may be related.

    I’m reporting this so it can be investigated, as it seems like something that needs attention.

  • Please provide the entire save file(s) from the date when the issue occurred.
    :round_pushpin: file attached

  • Details:
    :round_pushpin: This occurred in Dowon, in Dowon Villa (lot ID: **Gangnam_Residence_DowonVilla). **
    Date of occurrence is February 15, 2026.

20260125-175610.zip (23.9 MB)

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