Jeld-wen Canada windows and doors

Purchased a home in 2018, all Jeld-Wen windows in the house. The windows looked really dirty, however it was not all dirt. The windows are not leaking there isnt any condensation but there is a hazy cloudy film between the glass in all my windows, terrible on a sunny day. I have reached out to this company several times in several ways, they are not answering my question as to why this is happening. I know i am not getting them replaced through warranty even though they offer limted life time warranty, I did not expect anything for free. I simply want them to tell me why its happening, what causes its. The will not answer me