I have the same problem with my WD Elements 1TB disk. I've gone through the internet, searched everywhere. Tried to solve the problem on windows and linux but no solution.
To tell the truth, what happens to your disks (also to mine) it means that your drives are not in good health. They have bad sectors. If you scan your drive with WD tools (Extended Scan) you will see the result as this.
So there is nothing more that you format your disk and make a data recovery. If there are important files on your drive send it to a data recovery service which WD supports (you can find a list of them on WD website). That is an option only if you can afford it cause cheapest recovery cost around 400 €.
So these are the options to recover your data. Afterwards if your drive's warranty is not over sent it to WD and get a new one. If not, just trash the harddrive after all these since the same problem will occur again. Buy a new one but not elements. TryPassport or My Book.
Sorry for the bad news.