2010 Octavia scout odd window issue?

In last week i have had 2 random things occur with my electric windows. I have only had car few months and the last time it was serviced, no faults were found.

After a night of heavy rain ,with the car was under carport,the drivers side switch pack would not work at all.All other switches operated windows ok, but nothing from drivers side. Later after being in rain all day parked at worked the drivers switch pack started working ok and nothing happened in next week. Until today car in shade and all 4 windows dropped down 2 inches parked on drive ? Reading on here about older car and different models with switch pack issues,corrosion and also CCU having an issue? Anybody experience the same symtoms on a new shape 2010 octavia ?

Most post i managed to find are older models, so hopefully i have not missed one.