This issue can have many potential solutions, so we have provided a list of fixes to try below:
1) Double check and see if the strobe is on and working by hitting the red "Test" button. Make sure that you are not plugged into a switch with a dimmer, as it may be causing the flash to take too long to charge in between shots.
2) Ensure that all of your connections are tight and locked in together. Pay special attention to the top of the camera, and the flash timer. This is a very small connection point! Make sure to restart the camera and Social Booth after plugging anything in.
3) Select "Webcam" in the video tab instead of "DSLR" More often than not, the flash will not fire if you set the video to "DSLR" instead of "WEBCAM" If you wish to use DSLR video you will need to set the DSLR to video mode. This will in turn disable DSLR photo, which we do not recommend.
4) Toggle "External Flash Mode" off and on in the camera settings.