L&N F7

Mystery Train and I have been going back and forth about a problem with this re-paint. The horn does not work for him and we have been trying to figure out why. The bin file is using the default F7 horn and the UP version which is the default works for him. Both of them work for me and I was wondering if anyone else has this problem or can tell us if it's working for you if you have it so we can have some idea about where to look to solve this problem.