Moving images generate JS error (#3) · Issues · Sigsiu.NET GmbH / Gallery Field

Moving images generate JS error

Moving images up/down generate following JS error:

jquery-sortable.js:48 Uncaught TypeError: Cannot read property 'removeClass' of null
    at HTMLDivElement.<anonymous> (jquery-sortable.js:48)
    at HTMLDivElement.dispatch (jquery.min.js?4a8ad77…:3)
    at HTMLDivElement.r.handle (jquery.min.js?4a8ad77…:3)

In the result images aren't saved in the entry. Same for front and back-end