This new T
"Train" Thing had me bugged. On advice of a friend, I created two trains - 1st train for mount, scope, focuser, and primary camera. The 2nd train - mount, scope, the guide camera as the primary AND Guider. This way KStars seems to recognize that I need to get the guide camera parfocal with the primary camera through the OAG. This works.
The second issue seems to be solved by doing an alignment OR plate solve prior to guiding. Don't knows if this is always the case but it works. In 3.6.0 plate solving was never required. This is new to me.
Color these issues closed unless you have better advice.