After using the Flip function on a magic sheet object, new instances of the object created through copy/paste or by using the Create Array function do not maintain the flip. Resizing a previously flipped object un-flips it.
For example, if you create a new arrow-shaped magic sheet object, the shape points to the right by default. If you use flip to make it point to the left, any copy made from the flipped version is un-flipped and points to the right. And if you create an array from the flipped left-pointing arrow, all the new arrow objects in the array point to the right. Further, when you try to resize a flipped shape, the flip is removed.
My intention was to create a small compass rose of a few arrow-shaped Command objects pointing in each of the four cardinal directions as a pan/tilt tweaker, but this limitation makes it more difficult than it should be as the shapes cannot be resized or copied after being flipped.
A further issue is not being able to adjust the orientation of the Static Text field so it is always upright, as can be done with the parameter fields of a magic sheet object. This prevents making the static text right-reading when an object is rotated off the horizontal.