... Get yellow medkit AS A HUMAN first. No transformations until you approach the wolf to be directly transformed. you literally got the first step misunderstood here. You don't transform early. You avoid it like in changed until you grab the medkit off the table. and then you get directly transformed from the wolf nearby. although. if you keep rubbing it after yellow medkit as a goo wolf. like you used to test it before. That still may need be patched for a later update or major one.
Oh and, Blue medkit use to see the bug is recommended if you are using the goo wolf to travel to where you need. Blue medkit use is encouraged if any transformations outside the bugged one you experience. which is the one I specified. does this specify it now?