eps couldn't be uploaded because it is not a valid file type

Hello ​@Bagus29237632rpx5 ​@yamato713108855 ​@daniellei4510, sorry for the issue. EPS has been intentionally temporarily disabled and our engineers are currently looking for a solution. I’m not allowed to specify internal discussions except that the file type should be allowed in the future once this is fixed and we appreciate your patience.

​@Contributor1 

Other similar cases have been reported.
Do you have any information?

There’s apparently some kind of bug involved. Try uploading in Illustrator or SVG format.