Stargate bug

[HikariTsukino]

Hello, I started using this plugin a few weeks ago and I had no problem with it, but now, after updating my server to the 1.3.1 version I have one.
When I create 2 portals and one of them is on a high altitude the people just fall down when teleporting, even when there is a double or triple floor under the gate, how could I fix it? Could I be doing something wrong?
(sorry if my English is bad =))

[Drakia]

Please provide the information requested in the Stargate post if you require support.