Pavlovia-SONA student does not get credit for second study

I am running two studies on Pavlovia and they are both integrated with my institutional SONA, set up to receive credit automatically after completing the experiment. I see that one participant did both studies when I download the results, but the automatic credit granting did not work for the second one they did. Are there known issues with the automatic credit granting if the same participant does two different Pavlovia studies through the same SONA system with the same survey ID?