Accessor not working when editing a form

[ekrist1]

I have an accessor and it works fine when i viewing the record, but the accessor is not called when i´m editing the record.

I have tried to a formatStatusUsing on the RichEditor field, but it´s not working:
->formatStateUsing(function ($state, $record) { return dd($record->description); })

If i dd the record the value is correct, but its not inserted to the richeditor. If i for example are just returning 'test', instead of the HTML, it works fine.

Any direction to get this working?

My accessor:

protected function description(): Attribute {
        return Attribute::make(
            get: fn (?string $value) => UpdateSignedUrl::update($value),
        );
    }