save the drawing with ai extension (background problem)

[MDDSGNR]

Hi,

I save a shape I drew in illustrator as ai. When I add this shape to a document in indesign running on win 11, the background becomes white. When I transfer the same shape to a document in indesign running on macos, the background becomes transparent just as I want it. There was no such problem before in Win 11 indesign. What do you think is the problem?

thanks in advance

[Ton Frederiks]

When placing the .ai file in InDesign use the Options to turn on the transparency.

[Kevin Stohlmeyer]

In InDesign, go to View>Display Performance. Change/Confirm it is set to High-Resolution and not Typical.