After the victory, the girls are reset to the initial set of clothes and there is no progress. (Sorry for the mistakes, English is not my native language.)
Сізбен танысқаныма қуаныштымын,
Sorry if the Russian boycott checks are causing unexpected problems outside of Russia. Russian speakers outside of Russia should still be able to play. The check should only trigger if both UI language is Russian AND regional location is set to Russia. Make sure the region setting on your computer is set correctly.
Just to make sure there isn't a completely different problem at play here, can you list what some of the ladies say when they lose the round but don't undress? Also try my other game "Striple" and see if it has the same problem?