Uncaught TypeError: Cannot read property 'sort' of undefined
I'm getting the error "Uncaught TypeError: Cannot read property 'sort' of undefined" in the Dev Console when trying to access the Contacts section after making some basic modifications of the Contacts section page (adding a couple of fields, including a new lookup) which is preventing anything from loading for the Contacts section. Before adding these fields it was working fine.
I saw the article https://community.bpmonline.com/articles/uncaught-typeerror-cannot-read-property-sort-undefined for this error, but the resolution for it states it's due to an incorrect application deployment, which seems odd given the minor modifications made all through the wizard. The article also states it's for bpm'onine mobile, which I'm not using. Does anyone have a resolution/know the cause of this?