Problem solved! I sent an email to Lectron explaining my issue and they were very prompt replying (within 1 hour) with the correct procedure. Apparently I was not doing it correctly and I suspect some others here weren't either (OE). The correct procedure per Lectron, that worked immediately, was to first open the Tesla app while selecting the proper Tesla location. Next select the charger stall you'll be charging at and then press 'start charging'.
Only then do you plug in the adapter/Tesla combo into the car's port.
You do not select the Lucid app for anything regarding Tesla charging. Perhaps this will change with plug N play which is currently not activated. Once I followed this procedure, the charging began almost immediately, in fact much quicker than when charging at an EA location. My charging speed, as anticipated, was a slow 48-49 kW but hey, it worked.
One interesting note, Lectron's procedure for charging indicates plugging in the adapter first, selecting the proper Tesla stall #, hitting 'start charging' and then attaching the Tesla cable to the already plugged in adapter. Lucid indicates you attach the Tesla cable to the adapter first and plug in the entire setup to the car. I noted that difference to Lectron and they said either way works, but they felt it was better to put the adapter in first.