When a stack moves, the movement is only reflected in the move points of the top-most member of the stack. However, if you attempt to move one of the others in the stack, after you've moved the stack, you'll find that it won't let you move on from there. Actually, the box to highlight the spot where the unit is, shows up where the stack started last I checked (although I was looking after movement, rather than after city founding).

*Clawdius*

I just check it again.

After building the city, the "reported" remaining movements are:

General Carrodus: 1.1

Sentinel 1: 2.0

Sentinel 2: 2.0

Soooo.... I tried moving

I was able to move one sentinel two spaces to the north.

I was able to move the second sentinel two spaces to the east.

A better view:

I was only able to move General Carrodus one space to the east.