lr_start_cross_vuser_transaction does not start ??

Hi !

I try to use lr_start ... and lr_stop_cross_vuser_transaction and their is no effect.

At first in the script / Send, send a message and I script lr_start_cross_vuser_transaction("msg","AA")
a second script / Receive, detects the msg reception and I script lr_stop_vuer_transcation("msg","AA",LR_ AUTO)

any idea ???

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