I am having a similar problem. Spider Video conflicts with Simple:Press. If I disable Spider Video all thing work again.
Copy of browser console
10:16:27.520 Use of getPreventDefault() is deprecated. Use defaultPrevented instead. content-script-libs.js:2
10:16:41.094 Use of attributes’ textContent attribute is deprecated. Use value instead. content-script-app.js:9623
10:16:44.802 Use of getPreventDefault() is deprecated. Use defaultPrevented instead. jquery.js:4
10:16:50.002 HTTP “Content-Type” of “text/plain” is not supported. Load of media resource https://destinymakers.org/wp/wp-content/uploads/video/Welcome_2014.iPhone.m4v failed. wp
10:16:50.038 Use of attributes’ textContent attribute is deprecated. Use value instead. content-script-app.js:9623
10:16:50.409 Use of getPreventDefault() is deprecated. Use defaultPrevented instead. jquery.js:4
10:17:01.284 Image corrupt or truncated: https://destinymakers.org/wp/wp-content/sp-resources/forum-gravatar-cache/48fb7046d0f259559d28a937aa853a47 48fb7046d0f259559d28a937aa853a47
10:17:01.982 this.element.propAttr is not a function jquery-ui.min.js:5
10:17:02.122 Use of attributes’ textContent attribute is deprecated. Use value instead. content-script-app.js:9623
10:17:08.851 Use of getPreventDefault() is deprecated. Use defaultPrevented instead. content-script-libs.js:2
10:17:13.682 this.element.propAttr is not a function jquery-ui.min.js:5
10:17:13.792 Use of attributes’ textContent attribute is deprecated. Use value instead. content-script-app.js:9623
10:17:14.873 Use of getPreventDefault() is deprecated. Use defaultPrevented instead. jquery.js:4