Ran WSPR for around 24 hours and got lots of Spots - in the USA and Australia…
Downloaded and compiled the latest version of Fldigi (ver 4.2.03) to replace my old ver 4.1.18 that comes packaged with whatever release of Debian I'm running.
https://sourceforge.net/projects/fldigi/files/fldigi/fldigi-4.2.03.tar.gz/download
Had to install a few additional libraries via APT, but the compile went smoothly and I see some new modes are now included, which I will investigate later.