Ok, so for those lost just like me. The reason for that is that another library has an "Extension: Core" update. It is blocking all other libraries even if this one is in the Library State: Development (taken down from Submitted). So, this trick to publish a new library by temporarily taking down an...

Hello,I've been updating some rules and libraries in Adobe Launch today and got stuck with this error:The "Core" extension has been upgraded on this property. The upgraded version must be included in this library by selecting the "latest" revision. Add it to your library, then rebuild. It worked for...