In case anyone else has this issue, I did figure it out.
For some reason, importing the SX1262 (LoRa chip) driver was conflicting with connecting to Blynk.
I found that if I structured my code so that I verified the Blynk connection was active before importing the driver code, everything worked fine.
First I defined a function to initialize and start LoRa receiving. Then I do not call that function until I know Blynk has started.
Now I am sending sensor data from a LoRa chip to a LoRa chip that is part of a dev board connected to my Wifi and Blynk. All works great!