There may be a crazy slew in the log data but it's dificult to tell with no information about where in the log data to look.
If you can give the time of a crazy slew then it might help.
The trouble isn't the quantity of the data it's the quality. There's 15,000 to 20,000 lines in the log file and finding the relevant place in that lot is going to be time consuming. Most of it is irrelevant.
Try turning the debug logging off for the cameras, most of the junk is from them.
A video won't provide any more information. I already believe you.