I upgraded to 6.1.8 today , when I start the program, I get the green PowerLinc 1132CU connection indication on the lower left. I can even upload settings.
However, when I try an ON or OFF command the the green dot in the bar goes to the midpoint and stops. Clicking a few more times just adds another dot.
This is a new issue that I noticed after the upgrade. The old version has worked fine but I did not try the older version before upgrading.