Hmmm...
There is a difference between SNAP and HOOK! But you are right, the hook modus doesn't work correctly.
e.g. the fx mix level works only once correctly in hook modus. if i switch to another patch and turn the knob and go back to the first patch, the the fx level takes absolut values according the knob position - no hook here. strange!
So far I didn't figure it out.
I guess I didn't see it, because it works at the beginning. If you turning the knob it is in hook modus and after that it is normal that hook and snap are working identically - unless you used the same knob for an other parameter or turned it in an other patch.
Strange ...