Revolution slider fails to update from 6.4.8 to 6.4.11 using the install wizard or the plugin updater. Looks like you guys may need to update your repo with the latest version. Demo content loads, but the Rev slider doesn’t activate because it needs to update.
I fixed the issue by downloading the latest version of the revslider.zip file. I think you just need to update your revslider.zip file to the latest version within your own repos.
