Ultrasonic Cleaner mishap

Was just about to clean my suppressors in some CLR. Threw my BCG in there with a charging handle and a Hyperion QD thread adapter, and this happened. What do you think caused it?

Was just about to clean my suppressors in some CLR. Threw my BCG in there with a charging handle and a Hyperion QD thread adapter, and this happened. What do you think caused it?