Hi Kory,
Sorry for the delayed reply.
Similarly with Robert who has commented on 09/01/2020, I found the layer which was causing the crash. I had a wms ENC layer in the project which dynamically scales the text, contours, symbols etc of the bathymetric chart as the view changes and I expect ArcGIS Pro was crashing because with each frame in the video export the wms layer needed to refresh.. Strangely it wasn't enough just to turn the layer off when testing why things were crashing, the layer had to be removed from the project completely. I would have also thought seeing as I had played through the animation numerous times that there would have been enough of the ENC cashed in memory for it not to stream the data over the web.
I would love to be able to use this layer in our fly-through videos if possible but for the time being I have exported geotiff versions at various scales and have them fade on an off as needed.
Attached are the dump files
Cheers,
Tom