Did you try to set one of these options?
If it’s on a local disk inside the workstation you could use this to prevent mAirlist from buffering an older file version. It then take it directly from the folder when the player is loaded:
There’s an option to let mAirlist “watch” the file for changes too:
I didn’t test this option with a AFC but it may force mAirlist to load the new file into the player when the old file has been pre-buffered before.
Please report back if one of these worked for you. 