I recently bought some Bosch Aerotwins and they said something about "improved rubber formula" or something on the box (which the old box doesn't) - I've not used them yet as they were to replace my spares which were getting low. Possibly they've "upgraded" them with a cheaper substitute which is supposedly better but in reality isn't as has happened to so many things lately...
Removed Bosch wiper… installed Michelin, I bought the driver side one from Costco to see if it would make a difference as they were £8.50 compared to £30 for a pair of Valeos.
Seemed the problem was resolved with a 5 minute check but will see how it goes as need some proper rain to verify.
Edit:can confirm, new Michelin wiper no issues problem solved.
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