I've tried upgrading EE from 2.5.2 to 2.5.5. The upgrade apparently went through OK, but when I login to the CP - none of the menu items are clickable and also the rounded borders on the menu items don't display.
I'm also getting an error when CP tries to load the following as a script;
admin.php?S=0&D=cp&C=javascript&M=load&file=css&theme=default&v=1356028154
When I check the Sources tab in Chrome Developer tool, I see the following;
<div style="border:1px solid #990000;padding-left:20px;margin:0 0 10px 0;">
<h4>A PHP Error was encountered</h4>
<p>Severity: Notice</p>
<p>Message: unserialize(): Error at offset 0 of 88 bytes</p>
<p>Filename: libraries/Extensions.php</p>
<p>Line Number: 229</p>
</div>(function($, doc) {var adv_css = {".button a,\n.cp_button a,\n#search form,\ndiv.contentMenu,\n#mainContent .formArea,\n#navigationTabs .first_level:not(.addTab)":{"border-radius":"10px"},"#navigationTabs .addTab":{"border-radius":"none"},"#accessoryTabs li,\n.heading":{"overflow":"hidden","border-top-right-radius":"10px","border-top-left-radius":"10px"},".tableFooter,\ndiv.pageContents,\n#mainContent #publishForm":{"border-bottom-right-radius":"10px","border-bottom-left-radius":"10px"},".newTemplate":{"border-radius":"5px"},"#write_mode_writer":{"border-radius":"15px"},".js_hide":{"display":"none"}}, selector, compat_el = doc.createElement("ee_compat"),supported = false,inline_css = [],use = ["", "", "$1$3"],prefixes = " webkit o ms moz Moz".split(" "),corners = " -top-right -top-left -bottom-right -bottom-left".split(" "),regex = /^-(.)(.*?)-(.)(.*)/,css_radii = {};$.each(prefixes, function(i) {var name = i ? this+"BorderRadius" : "borderRadius";if (compat_el.style[name] !== undefined) {if (i == 0) {use = ["border", "-radius", ""];}else if (i < 3) {use = ["-"+this+"-border", "-radius", ""];}else {use = ["-moz-border-radius", "", "-$1$2$3$4"];}supported = true;return false;}});$.each(corners, function(i, v) {if (use[2]) {v = v.replace(regex, use[2]);}css_radii["border"+this+"-radius"] = use[0]+v+use[1];});function process_css(key, value) {if (key.indexOf("@") == -1) {var apply_radius = "",sep = (supported) ? ":" : " ",jQel;for (radius in css_radii) {if (value[radius]) {apply_radius += css_radii[radius]+sep+value[radius]+";";delete(value[radius]);}}if (supported) {inline_css.push(key+"{"+apply_radius+"}");}else {jQel = $(key).css(value);if (apply_radius) {}}}else if (key.indexOf("@"+EE.router_class) != -1) {$.each(value, process_css);}}if (supported) {$.each(adv_css, process_css);var head = doc.getElementsByTagName("head")[0],ss_txt = doc.createTextNode(inline_css.join("\n")),ss_el = doc.createElement("style");ss_el.setAttribute("type", "text/css");ss_el.appendChild(ss_txt);head.appendChild(ss_el);}else {$(doc).ready(function() {$.each(adv_css, process_css);});}})(jQuery, this.document)
Wondered if anyone else had this issue? :/