QGNSS V1.10 does not seem to apply RTK data to LC29HEA fixes

I am starting to question the need to put in my datum manually as WGS84 coordinates versus NAD83 coordinates.

The error between the two coordinate systems, even if you use the wrong system, seems to be only about 0.1 mm :

Here is the conversion calculator I used (NAD83 to WGS84 - online and free):