what bug can close maps?how to Avoid?

[10dakongyi]

maps can closed by some bug

how to Avoid?

let bug can not close maps

[MentaL]

[josleyn]

let me your error for help you ......... Impossible help you with the description of error

[Yamazke]

i am online at server ... and when i am at mandara ... bug when i run ... like wall at map... and when i switch go shambala ... switch again go biryu ... etc
plz help me