need track replay STT still drops when changing modes

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What currently works: STT stays locked if the target is initially locked from RWS/TWS and changing to DGFT (ACM) mode. As long as the target was locked outside of DGFT mode, you can swap back and forth just fine.

 

What doesn't work: If you initially lock the target in DGFT mode, swapping modes (to MRM, Nav, etc) will drop the target.