Error : Referenced by CharacterMesh0

Hello i get this error always if i try to delete the campfire blueprint for example the error changes to another blueprint with the same transient error on charactermesh0, someone had the error?

Hey Axxi-

What does your character mesh look like? Can you provide a screenshot? Do you get the same error message in a new project? If so, please provide any reproduction steps to help me test the issue locally. Additionally, rather than delete the Campfire blueprint from within the editor, are you able to remove it from the Content folder of the project explorer window and then open the project?

my project is very complex and big so i made a copy and almost deleted everything from it to track this error and i think i tracked it to the ocean plugin since the update to 4.14 without the ocean plugin fixed it