Sent SMS count does NOT increment

Your software
My Mautic version is: 2.15.1
My PHP version is: 7.1.27

Your problem
My problem is:
Sent SMS count never increments, all text messages display “0 sent” (in the interface and through the API). Yes, the SMSes are actually sent.

I use a custom plugin (added an SMS transporter), do I have to add the SMS count increment function in my own sendSms function ?

Up ! Am I the only one using text messages ?..