One thing I think about, if you have the original file like you said, then I can comment whether it can be null or not.ok sorry, well I hope that hotjar speaks for itself. mf = mouseflow, ceg = crazyegg. I have an obsession due to my background of speaking shorthand and was under the impression that generally these would be understood here. Anyhow, as I do not have experience with nulls or php in general, is there a reason why it appears these analytic tools do not appear to have nulls?