[Bug?] Illustrator file shifts all objects upward after reopening/【求救】AI 檔案第二次開啟排版位置就會整體上移？

各位好，我遇到一個 Illustrator 的問題想請教：

同一個 .ai 檔第一次開啟時排版都正常，但關掉再重新開啟時，所有圖層內容會整體「往上偏移」，尤其是在有裁切區（artboard 或 clipping mask）和置入圖像的區域更明顯。我已經確認所有圖像都有嵌入（Embed），並非使用連結方式。

請問這可能是什麼設定問題、還是某個版本的 bug 呢？有人遇過類似的情況嗎？🙏

Hi everyone, I’m experiencing an issue with Adobe Illustrator and would like to ask for help:

When I open the same .ai file for the first time, everything looks perfectly aligned. But after closing and reopening the file, all layer content shifts upward, as if the whole layout has moved. This is especially noticeable in areas that involve the artboard edges, clipping masks, or placed images.

I've already embedded all images (not linked), so that shouldn’t be the issue.

Could this be caused by a particular setting, or is it a bug in certain versions of Illustrator? Has anyone else run into something similar? 🙏