On 9:39-9:40 there is a quite obvious edit.
On 23:41 Mariya slips mid-word during the narration.
While Evgeniy Mishukhin's character is addressed to as "Misha" or "Mishka" (which are short forms of name "Mikhail") end credits reveal his name as "Evgeniy". "Mishka" might be character's nickname acquired due to unknown circumstances.