RR Malaysia denied it, making it debunked. The US has indicated they "believe" it flew for hours, but has not indicated how they knew it. My best guess is that the US has some illegal military operation that caught it, and so the US tried feeding "parallel construction" to point Malaysia in the right direction with lies. But Malaysia is seeing through the lies, and not taking the hint. And that's somehow Malaysia's fault. Now RR Europe may have "new" information, which has not been given to the Malaysian investigators, but it's more likely another US lie.
If it actually happened as TFA asserts, why would RR Europe not tell RR Malaysia the details, so that RR Malaysia, actively involved in the investigation, could be giving correct information to the investigators? What possible reason would RR Europe have to leak the information to the US, to then leak to the press, while never letting the investigators, or even their own employee, know what's happened?