I can see I'm not alone. I have experienced problems with webclipper frequently lately. An recent example is http://www.sas.com/en_us/insights/articles/analytics/practical-advice-for-better-business-forecasting.html.
The problems both occurs with evernote add-on i Chrome for Windows and on firefox for android.
Hope you soon get it fixed. Webclipper was my primary reason to chose evernote in the first place...