Thank you for your response. I was trying to use the GUI tools in LPCXpresso V8.2 but it does not report how it selects one debugger over another. I downloaded and installed MCUXpresso and there is a new parameter –ProbeHandle. The order does not seem consistent.
Searching for ProbeHandle with crt_emu_cm_redlink does find a thread about programming but not a way to resolve a ProbeHandle to a serial number.
https://community.nxp.com/thread/459394
Killing all active debug components will also reset the probe handles. The order assigned seams arbitrary so software would not be able to select a probe by serial number. This thread shows what looks to be the same issue I have. There is an example with another program in the bin folder
https://community.nxp.com/message/783775
redlinkserv.exe –commandline
Which lets you execute a command “probelist” to enumerate probes on the console. The problem is when trying to run the crt_emu_cm_redlink.exe to program; it fails to find a probe when supplying a ProbeHandle. It looks like others have tried this and nobody has had any luck.