Author: 80n80n[at]gmail.com
[Added to the original trac issue at 10.35pm, Wednesday, 14th December 2005]

I've added a console log.

One segment disappeared at 14-Dec-2005 22:13:31. I dumped the memory etc immediatly after it happened.

At about 14-Dec-2005 22:27:30 two segments disappeared. I added the segments and then panned upwards. When the screen was redisplayed there were two segments missing. There's also a memory dump immediately after this.

Hope this helps.

Author: immanuel.scholz[at]gmx.de
[Added to the original trac issue at 11.41am, Friday, 17th February 2006]

spoke with Steve and the first bet is, that, since the applet's requests to the server are asynchronous, the line segment creation was quicker than the node creation which lead to the try to create a segment "from=0 to=0", which fails..

Author: immanuel.scholz[at]gmx.de
[Added to the original trac issue at 12.08pm, Tuesday, 28th February 2006]

I hope this is fixed with r866.