In looking at
ICE-7952 I was unable to replicate the problem in that case but uncovered a new issue. When certain datatable component examples are put on the page (not sure if all or only a subset), they work only if they are the first ones on the page. If another portlet is added to the page (which doesn't have to be a datatable component) which renders above/in front of the datatable, the component stops responding to input. At this point, I don't see any client or server logging to indicate an issue.