letters are erased when using webservice with chosen

[galgal1]

Hello,
I am using your plugin. I have very annoying problem. When the usre type fast
(so web requests are being sent). Some times the searchbox displays incorrect filters - some chacters erased
e.g. the user type "ct xray" i will ses "crray"
Any idea what can be wrong? did you had such an isssue before?

Sigal