Hello,
We have investigated it as much as it is practical on our computers.
It turns out that this is not a particular computer issue at all. This is a particular user issue. We can have 2 users with open OE modules on one computer and one user is trouble free and the other one will get the XML error message on the second & subsequent credit cards or invoices vaulted. The first attempt works works for any user. All the users are in the same security group. Then I made all of the settings in User Preferences identical for all users. Nothing helped and the problem persisted without change.
At the end there were no other differences except something that looked insignificant. I hesitate to mention it because I may soon see people on my street with butterfly nets converging on my home. However, since I sometimes live life on the edge, I will say what I saw. All the users with only 2 initials had this problem and those with 3 initials were trouble free. I created new users with 3 initials for those with only 2 and the new users do not get the error message. We don't employ any celebrities, so I can't comment on those with only one initial.
Should I have myself committed or wait for them to take me away?
Rick