Kylie Jenner is the latest member of her family to get a creepy, unwanted visit to her home ...

Our sources say this time was different -- the guy allegedly dug in his heels, and told security he wasn't leaving until he got a face-to-face with Kylie.

While Kylie wasn't home during this incident, this is the latest in a series of concerning encounters with obsessed fans for the Kardashian-Jenners.