The server I was on is glitchy in 1.9+ and the server is called Hypixel.
And the server i was on is not mine.
The URL is http://paste.ubuntu.com/25091275/
I have seen that glitch before, it is so annoying! Btw it's called a chunk error.
Sorry I didn't have any proof, it's just that it didn't show the crash report and you can't take a screenshot when the computer is frozen.
I don't think that is a bug because shulkers now come in different colors now.
And someone abused the report button on the hypixel forums and i got permanatly banned from the hypixel forums.