Backend Product variations loading indefinitely

Backend Product variations loading indefinitely, where there are only about 3 variations
So when editing a product, then going into Variations the section is greyed out and the timer appears.
Im getting this error to:

VM4469:1 Uncaught DOMException: Blocked a frame with origin Uncaught DOMException: Blocked a frame with origin “https://fast.wistia.com” from accessing a cross-origin frame.
at <anonymous>:1:15
(anonymous) @ VM4595:1
select2.min.js?ver=5.3.0:21 Uncaught Error: Option ‘ajax’ is not allowed for Select2 when attached to a <select> element.
at String.<anonymous> (select2.min.js?ver=5.3.0:21)
at Function.each (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-widget,jquery-ui-position,jq…:2)
at d.prepareOpts (select2.min.js?ver=5.3.0:21)
at d.prepareOpts (select2.min.js?ver=5.3.0:22)
at d.init (select2.min.js?ver=5.3.0:21)
at HTMLSelectElement.<anonymous> (select2.min.js?ver=5.3.0:22)
at Function.each (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-widget,jquery-ui-position,jq…:2)
at a.fn.init.each (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,jquery-ui-widget,jquery-ui-position,jq…:2)
at a.fn.init.a.fn.select2 (select2.min.js?ver=5.3.0:22)
at HTMLSelectElement.<anonymous> (wc-enhanced-select.min.js?ver=3.0.3:1)