Greg,
Wow! That is an immense amount of time you put in to help me out. Thank you so much for that. I will have a go at reformatting my SD card (thank God for the internet) and see if that works. I have plans to change the original board to the SKR Mini V2 some time this month, and I wondered if that may have some influence on this issue.
Anyways, I’ll start with the SD card first and then let you know if it helps. Until then, take care and thank you again for your time and encouragement.