This was observed while "Mam talent!" article is loaded in CX2 to be translated from English to Spanish (can be other language as well). Page seems to load correctly, but while article is being loaded into CX2, following Javascript error is thrown:
Uncaught TypeError: Cannot read property 'getOwner' of null at ve.ce.MWTableNode.js?7d2d0:129 at Array.map (<anonymous>) at VeCeMWTableNode.ve.ce.MWTableNode.getTablesorterHeaderCells (ve.ce.MWTableNode.js?7d2d0:128) at VeCeMWTableNode.ve.ce.MWTableNode.updateSortableHeaders (ve.ce.MWTableNode.js?7d2d0:93) at later (core.js:237)