My M3LD has developed what appears to be bubbles in the glass where bugs have hit. I have washed every week using car wash soap. Today I tried cleaning inside and out with two types of window cleaner and then dish soap which I rinsed off. No matter what I do the bubbles are still there. They are most prominent when the window is wet. Does anyone have an explanation or suggestion I might use. I bought it in April '19 and it currently has 8,800 miles. Thanks in advance.