Playback() Don't stop to playing! Arrgg!

In my dialplan i have this. But when i press 1 to play the recorded MSG, the file keep playing it self!
Put this in your dialplan and you will see! I’m using asterisk 1.8.4.2

Hope for suggestion that helps!
NOTE*: I’m using options of this page:
wiki.asterisk.org/wiki/display/ … OK_INHERIT

exten=>7,1,Answer()
exten=>7,2,Set(TIMEOUT(absolute)=0)
exten=>7,3,Set(TIMEOUT(digit)=2)
exten=>7,4,Playback(beep)
exten=>7,5,WaitExten(10)

exten=>1,1,Goto(lst,100,1)

exten=>2,1,Goto(rec,200,1)

exten=>3,1,Goto(snd,300,1)

[rec]
exten=>200,1,Set(TIMEOUT(absolute)=0)
exten=>200,2,Set(TIMEOUT(digit)=2)
exten=>200,3,Set(AUDIOHOOK_INHERIT(MixMonitor)=no)
exten=>200,4,MixMonitor(/dev/shm/test.ulaw)
exten=>200,5,WaitExten(10)

exten=>#,1,Goto(phone-202,7,2)
exten=>h,1,Hangup(1)

[lst]
exten=>100,1,Set(TIMEOUT(absolute)=0)
exten=>100,2,Set(TIMEOUT(digit)=2)
exten=>100,3,Playback(/dev/shm/test)
exten=>100,4,Goto(phone-202,7,2)

[snd]
exten=>300,1,AGI(send_msg.agi)

What file keeps playing?

I don’t know what is happening!!! Please, put the codes in your dialplan and try to record message al least 3 times and you will see that something rare is happening!

Please, trust in me, i’m sure about i’am telling you! Put on your dialplan and see then POST your opinion!

Dou you want to record a message? Use Record instead MixMonitor or try adding option b.

Ok, instead of use MixMonitor, im using Record as you say, but… Asterisk developers have to keep in mind that the Playback() was working well and NOT now!

Keep your eyes open Developers!