Recently I've started using Dashticz and it's looking great and also very flexible, there seems to be a lot to learn

But I'm running into some strange behaviour and hope that somebody is willing to help me.
I've installed Dashticz v2.3.3 master on a synology server and Domoticz is running on a RPI3B+.
Some background info:
I've created a selector switch with different temperature values.
I've got a switch that turns on and off my CV.
On Domoticz I'm running SVT (Smart Virtual Thermostat).
When I change in Dashticz the temperature, so the CV will turn on, e.g. "23 graden"
The CV indicator on Dashticz "CV aan of uit" doesn't change. Allthough Domoticz is turning on the CV switch!
When I push "23 graden" again, the switch "CV aan of uit" in Dashticz is changing state!?
The same behaviour appears when I want to turn off the CV, by selecting a low temperature, e.g. "14 graden".
When I do the same thing in Domoticz (and it does run already a long time) everything is reacting promptly and consistent.
Tried different browsers: IE and Chrome and the have no differences.
A screenshot attached
Thanks in advance, Johnnie