Hi Russell, thanks for raising our attention to this!
This might sound silly, the 'blades' that are 'falling out' - did you mean the plastic protector sleeves instead?
We do advise in our installation guide to remove the sleeves prior to using the new blades, however, I understand it is easy to miss this step.
I've emailed you directly to confirm this further and offer further assistance if needed.
Keen to hear from you soon!
Cheers,
Wipertech Team