latest version causes js exception Uncaught TypeError with divi builder

after updating to latest version of the plugin a post can’t be edited anymore once saved since divi builder editor is not visible and the dropdown menus such as “page settings” are broken links not clickable.
This is the stacktrace got from console

wp-color-picker-alpha.min.js?ver=4.7.4-b-modified-1606844350:8 Uncaught TypeError: Cannot set property ‘toString’ of undefined
at wp-color-picker-alpha.min.js?ver=4.7.4-b-modified-1606844350:8
at wp-color-picker-alpha.min.js?ver=4.7.4-b-modified-1606844350:8
(anonymous) @ wp-color-picker-alpha.min.js?ver=4.7.4-b-modified-1606844350:8
(anonymous) @ wp-color-picker-alpha.min.js?ver=4.7.4-b-modified-1606844350:8
iris.min.js?ver=1.0.7:5 Uncaught TypeError: (intermediate value).setHSpace is not a function
at h.<computed>.<computed>._create (iris.min.js?ver=1.0.7:5)
at h.<computed>.<computed>.h.isFunction.a.<computed> [as _create] (widget.min.js?ver=1.11.4:11)
at h.<computed>.<computed>._createWidget (widget.min.js?ver=1.11.4:11)
at new h.<computed>.<computed> (widget.min.js?ver=1.11.4:11)
at HTMLInputElement.<anonymous> (widget.min.js?ver=1.11.4:11)
at Function.each (jquery.js?ver=1.12.4-wp:2)
at n.fn.init.each (jquery.js?ver=1.12.4-wp:2)
at n.fn.init.h.fn.<computed> [as iris] (widget.min.js?ver=1.11.4:11)
at h.<computed>.<computed>._create (color-picker.min.js?ver=5.5.3:2)
at h.<computed>.<computed>.h.isFunction.a.<computed> [as _create] (widget.min.js?ver=1.11.4:11)