I've sent an email Gaku and he's going to check into it for me but I thought I'd post here to see if anyone has an answer. Here's what I wrote in the email.

I believe there might be a problem with the lights in the reels on the New Sea Story machine (The same one that had the broken parts). When stopping the reels the first 2 reels will go dark when certain symbols come up in the middle line. Symbols like the 7 or the turtle. The reel goes completely dark and no symbol lights up. This doesn't appear to happen on the third reel. I guess it could be on purpose but it doesn't look right. Any ideas?