Roger, The next time you get the debugger running, instead of clicking on the [cid:image001.png@01DAE8C7.4756FCB0] Continue button, try the [cid:image002.png@01DAE8C7.4756FCB0] Step Over button (don’t use the [cid:image005.png@01DAE8C9.253790C0] Step Into button, as it currently behaves like the Continue button). If you press/click on this Step Over button repeatedly, you can see the debugger step through the schema and data files.
Also, on the right half of the screen above the Data Editor window there will be a tab that you can click on that will display the temporary file being used to hold the infoset as it is being built. You can see how it grows… and shrinks when the parser backtracks. The tab should be a truncated version of something that looks like this: [cid:image003.png@01DAE8C8.0E793A60] Once the file parsing completes, this file is removed and the display changes: [cid:image004.png@01DAE8C8.786FFF80]