Yep. Don't talk to Oksana (she will appear in the Tavern in the Village) until AFTER you complete Go Forth and Multiply I did, and now I can't finish Go Forth and Multiply. I presume Tinkerer is aware of this issue, but not sure if it will be fixed.she will return after you complete "go forth and multiply", during "spread the word" quest..
to avoid "go forth and multiply" from bugging, ignore the inn in town till Ziva tells you to find new followers