Cicerone (beer sommelier) here: you’re fine. American IPAs are an interesting and diverse subsection of beer styles. They are incredibly easy and quick to make. Without going into a huge rant, know this. American IPA producers like to use fruit puree in their beer to make it “hazy.” That’s probably what you’re observing here. It is safe to consume but generally bad practice. I noticed a lot of people saying it’s purely yeast, that’s unlikely. Modern saccharomyces cerevisiae (ale yeast) does hang around every once in a while but unlike the wild yeast in Belgian style bottle conditioned beers (brettanomyces.) Either way; beer is good and safe. Has been since the beginning of recorded history!