Camera notification issues

Hi. Just installed a security system with two cameras. My intention is to run the system with notifications being pushed to an Android phone. I will be using Free Notifications Reader to intercept the notifications and issue a spoken message.
It works perfectly with the entry sensors, but does not work as well with the cameras. I get the chimes, but no spoken alert.
I’m not an Android expert by any manner of means, but I believe that the format of the messages from the cameras is different from those sent from the sensors. (I think it may be something to do with the snooze option on the camera messages).
Has anyone else come across this, and if so, have you found a solution.