Thanks for responding UKHeliBob,
Here is a link to my project In order to recreate the issue, besides the Nano Every, you'll need an RPi and two nRF24l01 radios connected to each.
The radio is connected to the SPI with CE on D10 and CSN on D9, VCC 3V3. For the RPi configuration, see Automation/IoT with NRF24L01+ and MQTT
Good question about delay(). It is my understanding that delay() uses a timer and an interrupt. From reading the various projects of TMRh20, interrupts will interfere with the code written for the radio. This implementation of a blocking delay does not block interrupts.
Thanks again for responding.
OSD