The issue isn't related to the launcher or files. The flaw itself exists in the cloak texture, specifically the original cloak texture on the Mojang server. I don't know which of the six sections my texture issue report would fit in, so I chose the launcher section. Sorry if I've confused you in any way and continue to do so.
The problem isn't with getting the cloak or how I got it, but with the texture itself. The texture itself can be obtained from the cache in the game folder (if it's been running for a while), or simply by downloading it from the internet, like on namemc.
Can confirm, it is like that also in 18w09a, any connecting redstone away from those observers will trigger a pulse as well.
My guess is because they are supposed to swim towards treasures or ruins, I think that behavior should be changed when they are above sea level.
Can confirm
Attached my playerdata folder
I can reproduce it in every snapshot version since 17w48a. Are you sure you are using a multiplayer server?
The second possible reason why you can't reproduce is because your name doesn't have capitalization or symbols which lately seems to impact the parser a lot.
I see. A simple copy of the file to tags/items would solve it. I blame the lack of documentation. Thanks.
.