Paul Smith

Cactus will still break boats that land/travel on top of it, but do not get damaged when colliding from the side.

This is a by-product of Bedrock's C/P tick Redstone system.  The only thing that may be considered a "bug" is the lack of visual update to Redstone dust, despite it still powering Redstone Consumers.

Yes, still an issue for me. 
I can get MC to run, but it's annoying have to go through a CMD window each time.

Your problem looks like the same as the one I've got. 
My launcher_log.txt ends in exactly the same way and leaves launcher stuck, not responding and not giving any error message.

I'm planning to submit this as a separate thread, but I have found a temporary fix. 
On the installations tab, try changing the 'java executable' box to point at java.exe instead of the default javaw.exe 
(in my case this was C:\Program Files (x86)\Minecraft Launcher\runtime\jre-x64\bin\java.exe)
No idea why this should work, but it did enable Launcher to finish loading for me.

To see if it is the same problem as I've got try going to the folder with javaw.exe in file explorer, then try double-clicking javaw.exe.  I get a message saying that Windows can't find the file javaw.exe 
I think the problem is that somewhere in the MC folder/files or in Windows the javaw command is being routed to an incorrect location (but I haven't managed to work out why/how/where!)

For info (a) I have reinstalled MC Launcher and this doesn't solve the problem & (b) I don't have java installed separately.

HTH

Can some Mojang employee please tell the public why this is considered working as intended? Everyone would like to know.

This has now been fixed, as the mob AI appears to have been fixed.

I'm sorry, but can somebody tell me why this is an intended feature? Because it came across as more of like a bug to me.

This may be the most significant bug that is currently in the game. This should be a top priority bug.

Changed the title + description to make it clear that this is a unique bug, separate from the one it is allegedly a "duplicate" of.

This issue seems unnecessary to be kept open, close it please.

Thank goodness this has finally been fixed

Close this, it's fine.

I wrote that on the wiki, by the way. I just wanted to see if it was intended behavior.

Joel, Endermen are not broken. They are broken in a different way, you are talking about how they lose their speed boost after you hit them if you stare at them to attack you. They do not de-aggro after you hit them. This bug is indeed fixed.

Still in 15w35b.

Still in 15w35b.

Yeah, as of now, Mojang seems to have fixed this bug. Man, this bug was annoying.

The name for this issue is very innacurate. The mobs do not slow to 0, they just move a fraction of their normal speed, didn't get certain numbers. Also they are slow instantly when they move through the water.

Joshua, thanks for the videos, they really help. But the spider one in daytime is inaccurate, as spiders normally stop attacking after a few seconds during daytime. Try it again at nighttime, but be wary that spiders' AI has changed in 1.8, making it so when it de-aggros, it will move forward blindly for a second or two then stop.

I also noticed a spider bug in 1.8 that applies to the wolf too. It is my report here: MC-49129. Somebody please check it out, nobody has viewed it at all and I reported it months ago.

Thanks, Kumasasa. If you do know, do moderators test any of the bugs reported? And are "confirmed" bugs listed as higher priority than "community consensus" bugs by Mojang developers?