Bug fixing

I have a problem with create.tsx. The output is shown but it should be blake because create.tsx is empty.
This is the code with the create button

breadcrumb={false}
headerButtons={() => (
<CreateButton
onClick={() =>
go({
to: {
resource: "companies",
action: "create"
},
options: {
keepQuery: true
},
type: "replace"
})
}
/>
)}
>

Where else could the problem be