I have reverted to1.04 and all works as it should.
However, no-one on the FB group has reported the same problem with 1.05 losing the E-Coder, so I'll stay with 1.04 for the time being.
What is strange however, is that the graphic problem reported on Mac OS Sonoma has now gone away, even when reverting to 1.04.
I think I'll stop fretting about it and find a whisky...
73 Stephen G4SJP