One magnetic task: SI vs CGS

I would call this a bug you should report to PTC.

When CGS is set, Prime neither recognizes Gauß (G) nor Tesla (T) even though they are offered in the units drop down menu for selection.

There may be a reason for omitting and not recognizing G, T or tesla (its also done by real Mathcad), but then the dropdown menu should not offer them but should rather offer the valid units used in  CGS, which are "gauss" and "stattesla"

As you can see, Prime itself uses the unit "G" for display, but does not accept it when you manually type it in.

So its sure a bug in Prime!