Wipeouts - Not Stretching in dynamic block

I have noticed in some dynamic blocks that have wipeouts in them, that they dor not stretch with dynamic actions.

In fact, they don't seem to be capable of stretching.

I have read some post about "Autodesk Sketchbook Designer for Autocad 2012" causing some conflicts.

Is this still an issue?

Is there an advantage to having it installed?

Do I need to uninstall it? or not?

Does it interfere with anything else in Dynamic Blocks or the drawing file?

Any comments are appreciated.

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