Hello,
I am currently using ColorSpace version 1559. I have no calibration issues with the probes, Colorchecker Display Plus and Calibrite Display Plus HL.
On the other hand, I am having problems with versions 1629, 1717 and 1743?
I keep the Colorchecker probe which goes lower in dark lights with version 1559.

Please show your probe settings in both the old and newest ColourSpace versions.
They will need to be different for the newer ColourSpace versions.

When you have the correct settings, the later versions of ColourSpace will perform better then the older versions.

Steve

For others that may see this thread - the user emailed the following:

"I finally managed to have a correct reading with version 1743.
The advantage is that it reads better in low light.
I think there must have been an installation problem...
Thanks for the help and sorry for the wasted time."

Steve