I have just upgraded from VW 2015 to VW 2017, and now having a problem with the accessory insertion tool.
First I place a lighting unit on the plot using the instrument insertion tool.
Select the instrument insertion tool.
Select a non-static accessory (such as a scroller) via the pull-down menu (note in the displayed window, that the data record indicates the device type as an "Accessory"
Click on the front of the unit to place the scroller, click to set the angle of the scroll, and click on the unit to connect the unit to the instrument.
The scroller will be placed on the plot successfully, but if you look in the object info, you will note that the device type is Static Accessory rather than simply Accessory.
As a workaround, I can manually change the device type, but the is obviously less than ideal.
UPDATE - After talking to Tech Support at VectorWorks, this seems to be a bug. It has been referred to engineering.