This is a recurring pro-Kremlin disinformation narrative about Flight MH17 to undermine the growing evidence that Russia was responsible for the downing of MH17. The JIT has in fact provided multiple items of evidence proving Russia's:
The Dutch-led criminal investigation by the Joint Investigation Team (JIT) has been ongoing since 2014. On 28 September 2016, the JIT announced that Flight MH17 was shot down by a missile from the 9M38 series, which was launched by a BUK TELAR missile system. The system was transported from the Russian Federation to an agricultural field near the town of Pervomaiskyi in Eastern Ukraine, from where the missile was launched. After firing, the system - with 1 missing missile - went back to the Russian Federation. On the 24th of May 2018, the JIT announced its conclusion the BUK TELAR used to shoot down MH17 came from the 53rd Anti-Aircraft Missile Brigade, a unit of the Russian armed forces from Kursk in the Russian Federation.
On the basis of the investigation conducted by the JIT, consisting of law enforcement agencies from Australia, Belgium, Malaysia, Ukraine and the Netherlands, the Dutch Public Persecution service will persecute Igor Vsevolodovich Girkin, Sergey Nikolayevich Dubinskiy, Oleg Yuldashevich Pulatov and Leonid Volodymyrovych Kharchenko for causing the crash of the MH17 and murdering all 298 persons on board. The Public Prosecution Service alleges that the four individuals cooperated to obtain and deploy the BUK TELAR at the firing location with the aim of shooting down an aircraft. For that reason they can also be held jointly accountable for downing flight MH17.
The European Union and NATO have called on the Russian Federation to accept its responsibility and to fully cooperate with all efforts to establish accountability. On the basis of the JIT’s conclusions, the Netherlands and Australia are convinced that Russia is responsible for the deployment of the Buk installation that was used to down MH17. The two governments are formally holding Russia accountable.