BIG UPDATE: Hey, hey this issue is completely resolved in the latest version of the WPCacheOn plugin 1.2.0! Upgrade the plugin NOW and this issue will be fixed! More information on the changes from the latest update on the Changelog page.
If you are still able to notice this issue after the update to 1.2.0, feel free to contact us for further support!
Click here to see how to remove the strange symbols from your page or post