Failed Ajax Request / Redirect on field drag (Firefox)

When dragging a field, the moment i release (mouseup) i get redirected to 0.0.0.2 or 0.0.0.3 not being able to change the position of the field.

Testet on local server and in production Website. Same results in both.

Firefox 89.0b8 (64-Bit) – Not working.
Firefox 88.0 (64-Bit) without any Addons – Not working.

Chrome 90.0.4430.93 (64-Bit) – Working.
Edge 90.0.818.56 (64-Bit) – Working.
Opera 76.0.4017.107 – Working.

Plugin 1.2.19
Wordpress 5.7.1
WooCommerce 5.2.2

Log (Firefox 89.0b8):

Script terminated by timeout at:
t/e.start/<@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/SharedCore_bundle.js?ver=18:15:39972
value@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/SharedCore_bundle.js?ver=18:15:38108
e@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/SharedCore_bundle.js?ver=18:15:34670
FrameRequestCallback*S@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/SharedCore_bundle.js?ver=18:15:17358
value@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/SharedCore_bundle.js?ver=18:15:37636
t/e.start@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/SharedCore_bundle.js?ver=18:15:39953
value@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/SharedCore_bundle.js?ver=18:15:41362
oj@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:127:150
Aj@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:160:448
unstable_runWithPriority@https://test.localhost/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:25:260
Da@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:280
ab@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:154:192
Te@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:146:357
Pg/<@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:61:68
unstable_runWithPriority@https://test.localhost/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:25:260
Da@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:280
Pg@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:61:16
ha@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:451
@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:236:59
Ei@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:41:90
EventListener.handleEvent*Cb@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:41:9
w@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:40:318
Md@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:35:298
oa@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:44:137
hj@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:117:314
Sh@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:152:399
Th@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:152:287
tj@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:152:152
Te@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:146:151
Pg/<@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:61:68
unstable_runWithPriority@https://test.localhost/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:25:260
Da@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:280
Pg@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:61:16
ha@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:451
Ja@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:224:400
enqueueForceUpdate@https://test.localhost/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:215:257
w.prototype.forceUpdate@https://test.localhost/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:21:26
value/<@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/FormBuilder_bundle.js?ver=18:1:191094
value@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/SharedCore_bundle.js?ver=18:1:12184
value@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/FormBuilder_bundle.js?ver=18:1:52758
value@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/ProductFieldBuilder_bundle.js?ver=18:83:45408
OnFieldAdded@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/ProductFieldBuilder_bundle.js?ver=18:75:195590
e/<@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/ProductFieldBuilder_bundle.js?ver=18:75:582666
s@https://test.localhost/wp-content/plugins/woocommerce/packages/woocommerce-admin/dist/app/index.js?ver=2.1.5:2:132215
u/i._invoke</<@https://test.localhost/wp-content/plugins/woocommerce/packages/woocommerce-admin/dist/app/index.js?ver=2.1.5:2:131969
y/</<@https://test.localhost/wp-content/plugins/woocommerce/packages/woocommerce-admin/dist/app/index.js?ver=2.1.5:2:132574
f@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/ProductFieldBuilder_bundle.js?ver=18:75:579831
i@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/ProductFieldBuilder_bundle.js?ver=18:75:582833
promise callback*f@https://test.localhost/wp-content/plugins/additional-product-fields-for-woocommerce/js/dist/ProductFieldBuilder_bundle.js?ver=18:75:579902