I downloaded Duo Authentication tree node and created an authentication tree as mentioned in the marketplace. However, my authentication fails without the Duo node being triggered. I can see that the node failed to process in the debug log .
ERROR: Node processing failed
java.lang.ArrayIndexOutOfBoundsException: Index 1 out of bounds for length 1
[CONTINUED] at com.duosecurity.duoweb.DuoWeb.verifyResponse(DuoWeb.java:71)
[CONTINUED] at com.duosecurity.duoweb.DuoWeb.verifyResponse(DuoWeb.java:61)