I have a 2020 Eagle HT 284BHOK and there are two large orange LED markers on the outside front cab. There is a curved piece of plastic that does not cover the length of the light fixture, creating an opening and allowing water and dirt to accumulate inside the light fixture. The opening is at the top of the light. Both left and right lights have the same issue.
The dealer ordered new light fixtures, but the parts have not arrived yet. I am hoping the new lights will have the curved plastic covering from top to bottom. On the original lighting, looks like they used rubber caulking to seal the last half inch or so. That caulking came off after the first washing of the trailer.
My 2018 looked similar before the re-paint. It seems like the dealer moved the gap to the bottom when they re-installed the lights. I am not sure that is any better, but at least the water doesn't run down the LED fixture. I think the plastic just shrinks in the cold. In the summer I didn't notice it as much.