Can confirm for 17w16b.
The problem here isn't beacons, it't the way potion effects in general work.
Currently, when an effect is applied to a player that is a higher level than the same effect already on said player, the lower level is removed completely, forgotten by the game.
What probably should happen is: stronger tiers of effect push their weaker variants somewhere else, where it isn't seen by the player nor does it effect them, but it can continue counting down, and be reapplied if the stronger one runs out first.
Sonic, thanks
Can confirm for 1.8.1
It seems animals will not jump up one blocks when being led, but have no problem when on their own. Confirmed.
I am thankful for your help, this clears things up.
Thanks. As long as it works in those gamemodes, I think I'll be fine 🙂
I found the strangest solution. I went along with my plan, and made a command block clear glass before equipping, giving the illusion that the hat's couldn't taken off. Now it works. When I take the hat off, a new one gets put on.
Confirmed for 14w11b
Actually I discovered this was a one world problem, it only affected that one world, and it was caused by a lack of scoreboard.dat file. In other words the only "bug" was a missing file, which may have been a copy and paste problem, and we can classify this as a mistake 😉
Oops sorry, I thought I checked all the duplicate-potentials 😛
Is this topic resolved? There are no hints to the fact that it is, but I can't vote for it.
I have the same problem with my bow, in currently all versions with scoreboard.
Added crash report!
Sorry I forgot. I'll mark that as an important on my to-do list, and work on it. My time on my device is too limited today to work on it, but I should have plenty of time tomorrow. Again I'll mark it as important so I remember.
Okay, will do. If not today then tomorrow.
The /give command, but it works with any head at all
Okay give me a few minutes. Remember it will only work in 13w38 versions.
Disappear is all 13w38 versions, and reappear in any other versions (any other version that has that block add in-game)
By equipping it I mean wearing it, like as a helmet.
Thanks! Glad it was reproducible. Commented on the original. Sad to see there are so many problematic edge cases with redstone.