Why do we always deal with problems instead of wasting time editing ?
I don't think you can ever solve this problem.
This problem has been around for a long time and has no solution.
Then why are there adobe developers?
advice hire others.
What is this? Please show the layers panel to get information about this object.
What do you want to expand it for?
Looks like an image.
Illustrator is a vector app and cannot expand images
Your file name says .jpg... unless you have some bizarro naming convention for vector art files posing as pixel ones I'm guessing this isn't vector art...
It is not the object to expand but a raster image/ If you want to edit it in Illustrator. you have to use Image Trace option. After tracing you will see an Expand button for images (and it's not the same expand as you see in the menu).