Xact-dialer, dial prefix not working

I try to use Xact-dialer dial prefix in order to use a specific outbound route without success.

I have :
a group called TEST with a number to call 065111702
a campaign with dial prefix 8
an outbound route with pattern 8065111702

This configuration does not work

If I use as number to call 8065111702 and do not specify any dial prefix it works fine !

Any suggestion ?

Cheers

did you get this working?