Unfortunately this solution only worked for the very simple test sketch I was using to see if several messages could be printed on the serial monitor.
When I used the REAL code, I had there messages at boot time ...

The problem was SOLVED when I UNINSTALLED the current board version and installed version 2.0.17

I have a setup where an esp32 DOIT dev board rev1 is connected to a TFT display and an nRF24L01.
The objective is to receive sensor data for remote units via radio and display these values.
The sketch has been working for more than two years without problems, but from time to time I decide to ...