pasted vector from illustrator to keynote become invisible

Dear community,

I can't recall exactly when this issue began (approximately 6 months to 1 year ago), but when I copy a vector from Illustrator to Keynote, it initially appears in Keynote. However, after some time, the file becomes invisible.

I can still select the object (the handles are visible), but it remains invisible. In the right menu, I can see: "paste image.pdf!" I have attached the preview here (apologies, it's in French).

Has anyone else experienced this problem? Your help is greatly appreciated.

Thank you, Lucas