Double jetways do not happen normally, I guess is something that's related to AES, especially if you are seeing double "FSDT-jetways", meaning clones of our jetways that do not move with AES. If this is the case, maybe is something that hasn't correctly installed in AES, since AES comes with its own exclude BGL, that should be get rid of our static jetways.
If, instead, you are seeing double jetways but with a different look (like default ones), it's an entirely different issue: you are seeing the default KORD together with FSDT. But it shouldn't be just jetways, you should also see some double buildings.
The DME distances are going to be fixed in an update that will be released in the next days.
