Good afternoon, dear developers, I want to write not exactly about an error, but more even about a not particularly logical solution (I apologize in advance for possible grammatical errors, since I don’t know English and this text was written using Google translator). So, I want to touch on copper doors, we know that in the game we have 12 types of doors, 10 of them are wooden, iron and copper. We know that we can open wooden doors with our hands, while iron ones only with the help of a redstone signal (lever, button, redstone torch, etc.), but we can open a copper door with our hand, just like wooden ones. But what is the problem, you ask, and the fact is that copper doors are actually heavier than iron ones, which means they are more difficult to open. But why did I decide this? m = ρV is the formula for mass, where ρ is density and V is volume. Now let's look at the factors in this formula, first the volume, it is approximately equal for us, since the doors are the same, except that the size of the holes on the top of the doors differs, but this will not particularly affect the result, so let's assume the volume is equal. Now let’s look at the density, here it’s more interesting, as we know, the density of iron is 7.87 grams/cubic centimeter, while for copper it is as much as 8.96 grams/cubic centimeter. Conclusion: a copper door is heavier than an iron door, which means it is more difficult to open. Thank you for your attention, I hope you will notice this message and do something in subsequent snapshots (for example, so that the copper door can only be opened with redstone). Thanks again))