- Multiple flashes out of sync
- Make sure you are using only one wireless trigger for all of your flashes
- Some lower end flashes can not be sync at all. These can work if your subject is not moving, but you’ll end up with double exposure if you’re trying to take action shot of a subject in movement. Avoid these (Godox MS300…)
- Distance might be an issue with wireless connections. One workaround is to use audio cables
- Flashes firing for no reason
- Change channel on all flashes (and remote trigger) - this can help in busy environment where many electronic devices might cause interference
- Make sure no pop-up flash of your cameras are used
- Deactivate or tape the infrared sensor on your flashes
- Check your electrical system