Yes, same problem with me.
I had to add this css to make it visible :
#cookie-notice .cookie-notice-container {
min-height:90px !important;
padding:30px !important;
display:block !important;
}
From what we’ve seen majority of issues come from JS/CSS minification setting in caching plugins.
Please try checking your caching option – disable one by one to find what option/feature is responsible for that.
I have checked the settings of my cache plugin (SG Optimizer) and there is nothing regarding JS/CSS minification activated that can be causing the Cookie Notice not to pop up anymore.