Is this a bug as I have the same problem in Captivate 2019, but can't use the solution as the slide already has audio on it, so I am adding the audio to a character who appears at the first frame, but I don't want to have him speak for 5 seconds, so I'd thought I'd add 5 seconds of silence at the beginning, but each time it is saved, just like the original post, when previewed or reopened in 'Object Audio' it is no longer there.
Any ideas?
Thanks