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Sport Frame Sync Edge detection

Thread Summary

The user encountered an issue where the SPORT 0 B receiver did not detect frame sync when edge frame sync was enabled. The problem was resolved by correcting two parameters that were flip-flopped in the configuration. The configuration used external clock, external frame sync, active high, and no late FS.
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Category: Hardware
Product Number: ADSP-CM409F

We have 2 SPORT halves configured. SPORT 0 A is the transmitter and SPORT0 B receiver. SPORT0 B is configured interrupt mode, external clock, external Frame Sync. If SPORT0 B is configured as follows: 

if((retCode = adi_sport_ConfigFrameSync(sportRxHandle, 32,
true, false, false, false, false,
false)) != ADI_SPORT_SUCCESS) 

which is frame sync required, external, active high, NO late FS, no edge. Things work OK.  But if I turn on edge frame sync, then the receiver never detects frame sync. What am I missing?????