Default Disappearing widgets

Woke up this morning to find all the widgets of downloaded apps e.g. whatsapp, cnn, bbc gone. No longer in the widgets list. Tried uninstalling and reinstalling. Still no widgets. Also no widget installed when beautiful widgets app is installed. Strange. Anyone else facing this?

Edit: Did a hard reset and they are back. Not sure if installing and uninstalling themer from play last night had anything to do with it