Can you see any JS errors in the debugging console? To access this in Chrome, right-click anywhere on the page, selecting "Inspect element", then in the inspector that pops up at the bottom of the window go to the "Console" tab. If you see any error messages appear there, please post them here.

dbaran wrote:

right, should have done the the first time. Errors as follows:

Uncaught TypeError: Cannot read property 'node' of undefined bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:202
Uncaught TypeError: Cannot call method 'canHaveChildren' of null bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:141
2Uncaught TypeError: Cannot call method 'canHaveChildren' of null bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:179
Uncaught TypeError: Cannot read property 'node' of undefined bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:202
Uncaught TypeError: Cannot call method 'canHaveChildren' of null bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:141
11Uncaught TypeError: Cannot call method 'canHaveChildren' of null bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:179
Uncaught TypeError: Cannot read property 'node' of undefined bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:202
Uncaught TypeError: Cannot call method 'canHaveChildren' of null bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:141
Uncaught TypeError: Cannot call method 'canHaveChildren' of null bits.wikimedia.org/www.mediawiki.org/load.php?debug=false&lang=en&modules=ext.visualEditor.core%7Crangy&skin=vector&version=20120621T210603Z&*:179

Sorry, I should have told you this earlier: could you please set ?debug=true at the end of the URL and try again? That should assign the real line numbers to the errors.

dbaran wrote:

No problemo. Here's the errors with line numbers, and a detailed description of the actions I took:

--loaded editor, placed cursor at end of bullet item (the word "traffic" at the very end of the article)
--clicked away to skype, clicked back to browser with cursor still at end of list item, hit enter. following error resulted:

Uncaught TypeError: Cannot read property 'node' of undefined ve.ce.Surface.js:848

hit enter again, and cursor moved down to beginning of next line, no bullet added. hit backspace to return to previous line, following error resulted:

Uncaught TypeError: Cannot call method 'canHaveChildren' of null ve.dm.Document.js:429

Hit enter again, and cursor didn't move, following error resulted:

Uncaught TypeError: Cannot call method 'canHaveChildren' of null ve.ce.Document.js:21

hit enter a few more times, no cursor movement, and the following same errors:

Uncaught TypeError: Cannot call method 'canHaveChildren' of null ve.ce.Document.js:21
Uncaught TypeError: Cannot call method 'canHaveChildren' of null ve.ce.Document.js:21
Uncaught TypeError: Cannot call method 'canHaveChildren' of null ve.ce.Document.js:21

Mass-moving items into VisualEditor product

Reassigning per Christian's request.

orbit wrote:

I committed some fixes for handling at the end of the document, which likely fixed this bug. I'm following the clickstream exactly and am unable to reproduce the problem. Daniel also showed me this bug on his computer, so I have a very good understanding of what the bug looked like.