Not sure if any of these have been reported, but couldn't find any by searching in this post. (I'm new here - is this the right way to report bugs? Is there any public bug list?)
In the puzzle "Starter Pack->Positioning", it gives a popup early on saying "Glyph conversions earn you a permanent bonus to attack. This gives you just enough damage to kill a goat with one strike instead of two!" However, you can currently start the puzzle being able to 1-hit goats, even before you convert the glyph.
Also, I went through the first ~4 puzzles in the starter pack, and got halfway though the positioning one. I then exited out to the menu by choosing surrender. This brings me back to the puzzle list which did NOT have the blue flags next to the ones I've solved. I could then exit out this menu and reenter the starter puzzle pack menu again, and all the blue (Completed) flags show up.
Thanks!