You have overcooked the seasoning. I have done this once or twice too. Especially smooth surfaces (e.g. carbon steel) are very prone to this problem, unlike rough cast iron.
What you want is not a dark layer. The layer will darken with time and start looking like usual. But on a freshly seasoned metal utensil, the layer should be yellow-brownish. The stove may be too hot for this, especially a gas stove, I do my pans in the oven, for maybe an hour at 200 Celsius or somewhat lower. A burner under thin metal can cause hot spots of much higher local temperature, where the oil chars instead of polymerising.
There is also the type of oil you use. Generally, unsaturated oils polymerise easiest, but the final layer stays somewhat sticky. Saturated fat can give you some more trouble, but will have a smoother finish. I do multiple layers, starting with 1-2 layers of flaxseed oil - this gives a good basis, it is so unsaturated it can practically dry out by itself in the air - and finishing with cocos fat or lard, again 1 or 2 layers. For the first few time in a new pan, I try to fry with saturated fat too, for your wok you will probably find that the taste of cocos fat has a good harmony with Asian dishes.
And a word to the cleaning before: Vinegar was not such a good idea. Woks are made from reactive metals (that's why they need seasoning) and metals react with acid. Using acid to clean naked reactive metal will result in invisibly small pockets of reaction products on the surface of the wok, mostly rust. You can do this as an early step in cleaning, but afterwards you have to use something to make sure you have removed this too. To peel off the seasoning before reseasoning, you are much better off using a base, as it does not react with the metal. This will ensure that the new seasoning sticks to the metal itself and not to impurities which can be dislodged over time.
A new patina is vulnerable to scratches and even washing off into liquid boiling on it. I've found that even a well-established patina is vulnerable to washing off this way.
If I were you, I'd would NOT bother to remove the remaining patina and start over.
Rather, I would re-season the wok on top of the existing patina at least once. Actually, I'd probably re-season it about three times.
But that's just me.
Perhaps others will have more authoritative suggestions.
Good luck
Best Answer
It's hard to tell with those lighting conditions, but no it does not look like rust. It looks like either another layer of (partial) seasoning or the bare steel that has been partially heat tempered: https://upload.wikimedia.org/wikipedia/commons/8/89/Tempering_standards_used_in_blacksmithing.JPG
Rust is a dark burgundy color and red rust in particular will wipe off with a paper towel. If this happens to be red rust, you can just clean it off with soap and a sponge and season over it.