If the item frame is right on the chunk border (ie block contained within border, frame in next chunk) this can happen.
See this video for more details: https://www.youtube.com/watch?v=u0ejy0IEKXs
The video does clarify your meaning, thanks. However, this isn't a bug in the game (note that your "Block" and "Looking At" are always the same when looking down at the block at your feet). The XYZ values only appear different due to the way they are counted. Kumasasa explains this well in MC-4794, as quoted below:
Please take a closer look at the coordinates.
The coordinates mark the corners of the blocks.
If you omit the fractional digits, you land always at the center of the nearest block (seen in +x, +z direction):
If you teleport to 1 / y / 1, you land at 1.5 / y /1.5
If you teleport to -1 / y / -1 you land at -0,5 / y / -0.5
but if you specify the fractinonal digits, you land excactly at given coordinates:
If you teleport to 1.0 / y / 1.0, you land at 1.0 / y /1.0
If you teleport to -1.0 / y / -1.0 you land at -1.0 / y / -1.0
And continued:
Think of a coordinate system on graph paper. The axes of the coordinate system go exactly through each one line on the paper, the squares on the paper are the blocks.
--> The integer coordinates mark the corners of the blocks, not the blocks itself.
If you teleport to (0.0/0.0), you land on the exact center of the coordinate system.
If you teleport to (0/0), you land on the middle of the block right of the Z axis and below the X axis (Yellow block), but at the coordinates (0.5/0.5)
If you teleport to (-1/0), you land on the middle of the block left of the Z axis and below the X axis (Green block), but at the coordinates (-0.5/0.5)
Works as Intended (I believe). All hostile mobs despawn when no players are nearby, and when in spectator mode you don't count as a player.
Also, check your graphics card drivers. Do a search on your manufacturer's website for an updated version (Automated updates won't get major revisions). If you post a forced crash as Kumasasa asks, he can tell you if you need to update.
Attempting to replicate. What graphics settings are you using? Could we get a screenshot of your Video Settings page?
Oops, my bad 🙂
@MJo - I believe OP's talking about x coords (unless Y coords go negative).
Unable to reproduce in 14w25b. More details needed.
Expansion on Blah's comment:
Works As Intended. This value represents the maximum possible sun light at that block, see bl (block light) for actual light level.
Cannot reproduce. The difference in Kumasasa's third shot is that there is an odd angle (he isn't actually standing on x=-16, but x=-15) See my screenshot: http://imgur.com/3CSALSR.
As previously stated, this ticket is both invalid and a duplicate.
Please check this guide for submitting helpful bug reports: https://help.mojang.com/customer/portal/articles/801354-writing-helpful-bug-reports-for-minecraft
Thanks 🙂
This is a duplicate, so its been marked resolved for that reason. See the bug it duplicates (MC-35714)
Confirmed in 14w25b. Can also be replicated by placing a portal block, adding an eye of ender, then pick blocking said portal block.
No.
Intentional behaviour. Placing a torch under a block "strongly powers" that block, so that block can now supply power to those directly touching it. The Minecraft Wiki will have more details for you.
http://minecraft.gamepedia.com/Redstone_circuit#Power
14w26(a b and c) had some major issues with world generation and corruption, so this may be causing your issue. Unfortunately you may just need to start again with a new world, or pre-14w26 snapshot backup.