As I understand your question, all three devices worked correctly before. But now, one still does work, but the other two do not.
If you re-arrange the connector cables (?), does the situation remain, or does a different device now work, and the other two do not? If this is the case, then at least one of the connectors is faulty. There are regularly problems with midi/usb connector cables, and this can change depending on the devices being connected.
See recent posts here regarding this.
Geoff