Hi @Don_Phin, in case you have presented live the delay might have been because of the conferencing tool as well. Could you please test this out by recording a video or recording another conferencing call (maybe a test call) and then see if the delay is still there?
It was on Zoom, something I use 90% of the time.
Hi @Don_Phin, please note that without testing we will be unable to determine what caused the video and the audio to be out of sync.
Could you try to record a video with Prezi Video to see if this is also out of sync?