ImAGamerGirl

I'm having the same issue too. I made a discussion relating to the topic (http://forums.maplestory.nexon.net/discussion/comment/24951#Comment_24951)

Bug type: Gameplay

Brief bug summary: Xenon's Beam Dance skill kicks player

More details:
Using the Beam Dance skill and multiple enemies will eventually cause the player to be kicked from the world. Takes about a 10 seconds to 1 minute for it to occur.
Frames start to skip and eventually freezes which is when the bug occurs

I recorded the issue on my brothers account.
Link: http://plays.tv/video/58452adf992b77c3cf/hr?from=user

Steps to reproduce:
1. Play xenon
2. Use Beam Dance skill on multiple mobs
3. Eventually get kicked

Character name: ImAGamerGirl

Character level: 194

Character job: Xenon

World name: Bera

Date and time of the incident:
Happens whenever I try to train as my xenon character