Comes out backwards from portal

I have a portal set up to consume and come out of another portal, but what is happening is it goes in and returns straight away backwards from the same portal. I hope someone has an idea of what is happening.
please.
Len

Which portal are you using? The KUID number would help.

Thankyou for your interest Lewis , I have got it sorted now. I noticed that the portal was came through the ground about halfway , so I raised the ground around it and now all is fine.
Is it possible that posts that are fixed could be shown somehow?.
Len