The slider bug is known, it will be fixed as soon as possible, within the next release. Unfortunately there is no quick fix for that, it requires a script update involving multiple files.
The version number should be 4.9.1 of the one you donwload from codecanyon, after installation. The file name is the same, they do not change that, the contents should be however the newest.Best,
If you like my products, don't forget to rate them on codecanyon :)