https://www.theregister.com/2023/08/21/russia_moon_mission_luna25_fails/
Moscow makes a mess on the Moon as Luna 25 probe misses orbit, lands with a thud
First lunar attempt since Soviet era ends in катастрофа

Attempts to reconnect on August 19 and 20 failed, and the space agency's analysis of the erroneous orbit Luna 25 entered saw it "switched to an off-design orbit and ceased to exist as a result of a collision with the lunar surface."


That last quote is a machine translation, so let's not go all Star Trek and imagine the probe fell into a trans-dimensional wormhole so the matter used to make the machine cannot now be found in this thread of the multiverse. It's more likely Google Translate has been a little ebullient.

Luna 25 still exists. It's just kersplat.

At least it made it to the moon.

https://www.russianspaceweb.com/proton_glonass49.html

Culprit found

By July 9, it is transpired that investigators sifting through the wreckage of the doomed rocket had found critical angular velocity sensors, DUS, installed upside down. Each of those sensors had an arrow that was suppose to point toward the top of the vehicle, however multiple sensors on the failed rocket were pointing downward instead. As a result, the flight control system was receiving wrong information about the position of the rocket and tried to "correct" it, causing the vehicle to swing wildly and, ultimately, crash. The paper trail led to a young technician responsible for the wrong assembly of the hardware, but also raised serious issues of quality control at the Proton's manufacturing plant, at the rocket's testing facility and at the assembly building in Baikonur. It appeared that no visual control of the faulty installation had been conducted, while electrical checks could not detect the problem since all circuits had been working correctly.

On the Proton rocket multiple DUS sensors are clustered into modules called Blocks of Damper Gyroscopes or BDG in Russian. They are designed to provide navigational information to Proton's sophisticated multi-channel flight control system. A total of three BDG modules are mounted on a special platform on the body of the rocket. The evaluation of the recovered platform showed that three BDGs responsible for the pitch movement of the rocket were installed correctly, however all three BDGs responsible for the course (yaw) axis were rotated 180 degrees. Since all three BDGs had been installed incorrectly, the three-channel flight control system could not filter out faulty data by comparing it to correct information coming from the majority of sensors.

The improper installation apparently required some considerable physical effort, which, somehow did not raise any alarm at GKNPTs Khrunichev's assembly plant in Moscow. Investigators immediately looked at already assembled Protons, including those in Baikonur, but did not find such an anomaly.

 

Very good. The russians will have nothing to brage about

 

Here the today`s News photo about russian Engineers impatiently waiting the signal from Luna-25. https://scontent.frix4-1.fna.fbcdn....NHfR01QTlNyy-Jln2FS1K-ObCcDAAW6fg&oe=64E8284E