I'm trying to import illustrator .ai file to After Effects, sometimes I get a dialog within After Effects asking me how I want to import the file. But sometimes the dialog won't show up, and it will directly import the .ai file. I'm wondering why this is happening? And I would prefer to go though this dialog every time.
When there are several layers (Release in layers) in .ai file, it will normally show the dialog
When there is a single layer and inside that layer are all the graphics, it will just import as a single file.
Here is the answer to your next question: "How to properly export/import from Illustrator to After effects" https://www.youtube.com/watch?v=j2Uwdr2M53M