Dom parser error on line 460

Got this error when trying to import an XML

[Dwaine Maggart]

Can you provide the XML?

What platform and OS are you on?

Can you provide the XML?

What platform and OS are you on?

I can send it to you tomorrow.

I'm on a PC - Win10., z840 with a TB2 card connected to an ultra studio 4k.

I restarted the app and it imported fine, so I doubt it's repeatable.

It coincided with 'video IO not connected' message which I get a lot as it doesn't seem to get the handover nicely from PP when I tab between the apps.