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If you experience problems in saves where either now or in the past extensions (AKA "mods") or save edits were used, please try to reproduce the issue in new, unmodified game and report as per the above. If the problem only appears to occur in a modified game, you can try to narrow down the cause by sequentially turning off extensions until it might go away. Please If you need a quick injection of Credits to help you narrow things down, you could use the unmodified save here and sell some assets. If successful, you can then ask for help in the thread relating to the extension or save edit.
Please note that even after turning off or uninstalling an extension, or reversing a save edit, the save will still be considered modified.