MIB, no I don't think it's you, I too have experienced the same problem. Every textile type of boot I have bought, four different models all claiming to be waterproof. A cheap pair from Decathlon, then 'expensive' pairs from Salomon, Keen, and Salomon again. They all leaked, my first and second pair of Salomon leaked almost from day one!
I had already decided to go back to all leather but my present Salomon boots were bought for me as a Christmas present so I couldn't bring myself to reject them. My Salomon's have been the worst, during the past few months my present boots have hardly experienced wet conditions. However on my first morning on Dartmoor recently, my feet were soaked within 10 paces as I walk through some wet grass.
I'm now at home and was determined to send them back but I just cannot find out where they were bought from. My son cannot find the receipt, can't even remember if he had a receipt, or the name of the firm either and he has trolled through his emails to nothing! I know it may reflect my age but I am forever telling young people "get a receipt!"