This should definitely be a fault from the wallet. Seed phrase is the unique identity of the wallet and it shouldn't be possible to skip the process if the word list is not valid, except it corresponds to that of another wallet, the odds of this are impossible I would assume, cause afaik, only 12, 18 and 24 word seed phrases can be generated basically, and you should have a 23 word phrase with one missing.
As suggested above you should drop that address as the phrase is faulty.

Seed phrases are taken from a limited number of words at random, so there is a possibility of having one word appear twice in a 24 seed phrase