High-Pitched/Glitch Sound and Freeze!! (hang) more in the Description!

This Happen When Elder Guardian Attacking Squid.. I thought My Phone broken or Error or something like that. But it's a Bug. It makes Freaking-creepy Sound! like girl Screaming!. It sounded like Elder Guardian Laser Sound, but Played Repeatedly, very fast, several times in 1 second. I hope I have more detailed information for proof.. Well.. This happen when I'm spawning Many Squid on the ground. Then I summon Elder Guardian Using Command... After that, I heard Laser Sound and Played At High Pitch sound and My Phone Hang for like 20 second.