Let's make this a thread where you can report bugs you came across with!
A general template for bug reports:

Version: version number, example: 1.2.230.1313
Platform: the platform you are playing on, example: Windows 10
The issue: [SPOILER] <- if it contains any + bug description
Steps to reproduce: write down how to reproduce the bug if you know how
What I expected to happen: description

+ You can attach a screenshot where the bug occurred

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Devs if you would like to receive bug reports in a different manner or want me to add something to the template, please let me know and I'll edit this post.
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I'll start with the first bug report:

Version: 1.2.230.1313
Platform: Windows 10
The issue: [SPOILER] The game got stuck when I met the black cat at the burned down house near the station, the mouse kept showing the clock but nothing happened
Steps to reproduce: It only happened the first time I went there when I reloaded the game it worked fine, so I don't know
What I expected to happen: talking to the cat without the game freezing

Version: 1.2.230.1321
Platform: Windows 10
The issue: [SPOILER] After granny gets sick and and Corsak sends you to find ingredients for the medicine, if you use the knife on the tree at Corsak's house before using the horn Leah starts talking but no text is shown.
Steps to reproduce: Get to the point in the story where you need to get a beetle, and then try using the knife outside Corsak's house without using the Horn first.
What I expected to happen: A text showing why Leah doesn't want to use the knife on the tree

Version: 1.2.230.1291
Platform: Linux Mint 18.3 Sylvia
The issue: Whole system had frozen with a huge HDD swap when I looked at the top of granny's cupboard. I even was not able to reboot correctly. Prior to that point everything was nice and smooth.
Steps to reproduce: Couldn't reproduce. This was my first run, I browsed menus (btw great idea with difficulty setting), started the game and just made it to that point, visiting every screen, interacting with everything and reading all messages [MILD SPOILERS AHEAD] (newspaper-related ones was really fun). Before looking there I took tea jar and a Creation myth book from the shelf. [/SPOILERS]

P.S.: Thanks for the Ukrainian language support, it adds some homey vibe to the game. And the drawing style is magnificent, reminded me of "The Legend of Kyrandia" the game I played back in DOS era when I was a kid.

I didn't found any crashlogs in my system (looked in ~/GOG Games/FoxTail/ and ~/.local/share/Foxtail/) but found gog-system-report.sh in game's folder. Here's mine https://pastebin.com/ZttmcEvL , it contains full list of installed libs with their versions. If there's anything else helpful that I may provide to track down this issue? I'll just continue playing.

SPOILER ALERT!!!

[spoiler]I gave the coin to the old man and got oil in return. When I got severely stuck later trying to get the mint, I went for a walkthrough and discovered I should use the coin to get fish. So I went back to the burrow and fed it everything I could think of but never got another coin. Is this a bug? [/spoiler]

Glad to hear it. At some point I even thought the game might be punishing me for giving the coin away.

Version: 1.2.230.1321.19066
Platform: openSUSE 13.2 / Tumbleweed patched
The issue: [SPOILER] Inventory jumps to first page when throwing stuff into the hole in the nest
Steps to reproduce: Acquire lots of things to fill up 3 inventory pages. Go to the nest, start throwing things in, untul the 3rd inventory page contains only a single item. Go to the second inventory page and throw something into the hole. The inventory jumps to the first page.
What I expected to happen: The inventory should stay on the second page.

Version: 1.2.230.1321
Platform: Linux Mint 18.3 Sylvia
The issues:
1. Corsak's home: there's an eye icon but no any description lines for frying pan.
2. When giving non-quest item to Corsak, he just ignoring it and says his default speech, maybe it's need to play "denial" sound instead, or maybe Corsak or Leah should say something like "I don't need this" or "Better to use it somewhere else".

Version: 1.2.230.1321.19066
Platform: openSUSE 13.2 / Tumbleweed patched
The issue: [SPOILER] The knocked out bees have no click action
Steps to reproduce: [SPOILER] knock out the bees and hover your mouse over them, to see the "Eye" icon, then click the mouse button. Nothing comes up, so it is unclear whether or not we should do anything with them later.

Version: 1.2.230.1321.19066
Platform: openSUSE 13.2 / Tumbleweed patched
The issue: [SPOILER] After collapsing and crossing over into the fever dream, the inventory "UP" arrow is lit up, as if there were items available in the previous page. Clicking the arrow makes it go dark.

Version: 1.2.230.1321.19066
Platform: openSUSE 13.2 / Tumbleweed patched
The issue: [SPOILER] The bunny bush underneath the nest has an Eye icon but no click action
Steps to reproduce: [SPOILER] Find the carrot and walk to the foot of the tree where the nest is, the bunny will sit behind the bush, and you can see an eye icon, but there is no click action. Using the appropriate item here works, though.