It's not a bug, it's a feature!

[fallen cliff]

With the new librarian video, the idea of the signs "cycling" or being "indecisive" seems very interesting to me. I was thinking in some way, when a sign is first being placed, sometimes I could cycle through it's phrases, almost like herobrine is thinking what to put down.

[gaunt pollen]

or maybe like those weird scrambled letters (i can't remember the name of them) that look kinda weird and change quickly