Ah yes. You are quite right. I misspoke regarding root level permissions on the computers. I experienced the -7 "system problem code" when installing Pan 6 on the El Capitan computer and had to address the permissions issue that happens at the root level. I referenced the support page here to easily address that problem: http://www.provue.com/support/tn/code7/index.html
Thank you for the explanation regarding the metadata of the files. That makes a lot more sense as to why the problem would disappear. I am glad to hear there is no cause for concern. I look forward to using Pan X and appreciate your response to my inquiry.