Duel

@Noah Larkin the issue is that you can't use something like "stat.mineBlock.purple_wool" because no item named "purple wool" exists in the game code. Thus, it is impossible to use variants of blocks(i.e. Purple Wool) for scoreboard. However, this has already been marked as fixed in 1.9. I am only posting this for clarification for anyone else.

Pretty sure this is working as intended.

Perhaps I'm wrong, but wouldn't this be WAI? Because I remember snapshots and prereleases aren't usually supported by Realms and Realms has always been strict with version numbers(In my experience atleast)

Just want to add, this relates to a third party server. So either way it is invalid

If this is intended, it should be redesigned to make sure no one is confused, Like changing it from "Biome" to "Biome Variation" and options to things like "Flat", "Cold", "Mountainous", ect.

That may be because the command block does not execute the command, the player does. All the command block does is tell the server that the player is doing it. So essentially, it's only 1 block because it successfully did the command, but has no further information.

But thats just my thoughts, may or may not be correct

Confirmed for 1.8pre3 and 1.8

I kindof hope this is WAI. Ive seen some pretty cool designs using half-banners

Still occurs on pre-2

EDIT: Can confirm that this has happened since 14w25b

This did NOT work in 1.7.4+
Therefor, that is wrong information.
and as said above, WAI

Because "profession:x" is not a valid string in the command. To use datatags, the format is as follows

/summon <mob> ~ ~ ~ {<datatag>:<value>}

so your command would be something like

/summon Villager ~ ~ ~ {Profession:x}

From what I can see, The repeater in the line with the "broken" redstone torch goes into the last command block. That command block is now strongly powered and powers the redstone dust next to it, which will feed into itself and never turn off.

In short: Your issue isn't the torch, its the repeater.
Works as Intended, or atleast I am 99% sure.

Comparator is the string used for /give(item form)
unpowered_comparator is the string for /setblock

It has no AI, so that basically means its a shell of a mob(I'm half surprised it still gets damaged), so this is intended

The problem is it adds the village tag to the end automatically unless specified otherwise(using other presets).

Not sure if this is a fix, but you can probably use the CanDestroy/CanPlaceOn tag to be able to right click the spawn eggs on certain blocks

This is just a theory though and cannot confirm atm. Though probably intentional

You need to allocate more ram to Minecraft. I was having the same problem until I allocated 2GB

I searched "summon lightning tab" and it didn't come up, sorry for the inconvenience

You don't have any bookshelves...
Works as intended

They do, just place it and break it in survival