P0 Walkthrough break for Battle of the Frogs and Mice

[Reedicule]

Can't finish this quest due to there is no active dialogue on old Olbram. Still not fixed after 1.2 patch. I finished both Frog and Mice side quests.
Here is the quest log:
I spoke to Thrush about the conflict between Tachov and Zhelejov.

I read the Troskowitz chronicle.

I finally know what the sentence from the Troskowitz chronicle means. It seems that the border of the pasture between Tachov and Zhelejov should be marked with an iron nail.

I found the nail marking the border between the Tachov and Zhelejov parts of the pasture.

Prochek the innkeeper doesn’t want to have anything to do with me, so I can’t stay on his side of the conflict with Zhelejov.

I moved the nail to a different spot. I hope no one notices.

Thrush was happy to hear that the Tachov-Zhelejov conflict will finally be settled. He said that as soon as they meet in the pasture, he’ll ride over and sort it out.

The only way to get to the pasture where the dispute between Tachov and Zhelejov will be discussed is to go and see old Olbram and help him with his plan.