问题拆分
A private invite does not prove that a file is safe, compatible, or allowed by the game’s online service.
记录预期结果和第一次失败的位置，并确保每次修改都可以撤销。
实践步骤
Use hosted or offline environments you control, verify the creator and source, avoid anti-cheat-protected games, and use Melty’s reporting route when an upload behaves unexpectedly.
使用原创占位素材和离线测试环境，开始前先备份。
验证与记录
Test the lobby with a non-sensitive account, verify the game version on every participant’s machine, and confirm how to leave, uninstall, and report the mashup.
记录版本、步骤、结果和恢复方式，形成短小的现场笔记。