Can't edit some CC Libraries assets anymore

[YenebaSG]

Hello,

I have issues with some assets I added years ago and edited in Illustrator countless times. The assets were originally created in Illustrator, but when I double-click on them to open the asset, nothing happens, and when I right-click on it, it doesn't show the edit option anymore. 

This is so frustrating, as I need some elements of the logos, and I did edit them in the past many times.

I have attached a screenshot of the asset that I can't edit and the one next to it that I can edit.

[Ton Frederiks]

And drag and drop from the Library to an Artboard while holding down the Alt/Option key?

[YenebaSG]

Thank you for responding.

I tried that but unfortunately it didn't work.