With Russia's invasion of Ukraine not going quite as planned, and Russia now building up another invasion force on its border with Ukraine, the trained specialists who would have caught this error have been rerouted to help produce more advanced rockets for the military.
The problem is the sanctions imposed on Russia for its invasion are hurting its ability to pay its people. Some have gone as long as four months without pay and even when they are paid, it's not the full amount. Since there is no money to be made working on their space program, these people go to the military side which Putin continues to pour money into while grocery shelves start to go bare around the country.
Expect to see more such accidents until Russian troops are out of Ukraine and there is cooperation with the West who can provide technical guidance in these matters.