For some unknown reason, editing a sign then breaking that sign before the sign editing menu pops up in creative mode in a server sometimes kicks you from the server, i have no clue why.

I found this out by accident while trying to place a sign to remplace an old one but accidentally left clicked (which is equivalent to right click, i just inverted left & right click) the sign before breaking it, and the menu did not have time to pop up, i instantly got kicked after that, and after a bit of experimenting, found out that it was because i broke the sign before the editing menu could pop up, now this is not constant and only happens sometimes, so it might take a few tries to get it to work, and this is all info i have.

To reproduce it, its easy, just place down a sign, then right click that sign and left click it slightly later but still before the editing menu pops up, sometimes, this will kick you from the server.