Alternate property for pathSegList Property
The pathSegList property is used internally to render the path nodes and it is depreciated in the chrome browser version 48. So, diagram will not be rendered in Chrome browser 48. The reported issue has been fixed and patch for this fix is available now. You can get the patch by creating a support incident through direct trac. The fix will be included in our Volume 4, 2015 Service pack 1 release which is scheduled to be released by the mid of February, 2016.
However, as a workaround, there is an open source library file pathseg.js which is an alternate to the functionality of the pathSegList property. You can refer this file in your application to resolve your reported issue.
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