Thanks Katie, NNA's quick attention to this problem is certainly appreciated by this eight hour + daily user. Some notes from the past couple days below:
-I have noted that many of the PIOs/Symbols other than wall inserted, such as some office chairs, do not seem to work. Particularly some of the ones that appear in red line.
-The text problem temporary fix is to apply line color, from the attributes pallet, after every insertion.
-I have noticed a change in shift selecting that if I accidently overlap a mouse drawn selection box over mutiple items, that the overlap items deselect. I don't know if this is related to the 10.1.5 issue.
-Adjusting the height of PIOs/Symbols from the Structural Shapes menu was not possible. I entered the height/length in the Object Info Pallet and the entered measurement would not stay, it would default to 0".
-Using the handle on an object to resize with the mouse was not operating on various shapes that was posible pre 10.1.5.