It looks like WD removed 2.31.193

[Bennor]

Some where having trouble with 2.31.193 on the single bay where USB drives stopped being recognized. Perhaps WD pulled it due to that.

FW 2.31.193 broke My Cloud - No USB

Auto updated to 2.31.193 last night and today there was no way I could get My Cloud device to recognize the attached USB storage I had always been using. Hard resets, etc. - nothing worked. I downloaded 2.131.183 and loaded it and now everything works as it should again. I have now turned auto update off and don’t plan to do any further updates as I know what I have now works for me.