Oh yeah I had that problem too, but luckily it’s pretty easy to fix.
Just go into your skeleton where you as well added the passenger socket. Click on it and it will usually already stay at the select and rorate tool, otherwise just click on the tool at the top of the window.
Then you see a green, red and blue 1/4 circle. For me it was the green one I needed to change. So just click and hold on it and a circle will appear, with which you can rotate your character on the dino either clockwise or against it. You of course need to look in what direction you need to change it and yeah, try it out like that till your character is sitting correctly.
You can of course play through the editor, click eject or how it’s called to be able to look at your character and edit the skeleton right away, so you can see live how the position of your character changes.
I’m not that good in explaining it, I hope you know what I am talking about xD
By the way, does anyone of you know how to add a second attack to a dino? I’m working on a bigger and rideable Hyeanodon right now, but I somehow can’t add a second attack so it will do anyhting when I press right click on my mouse. I changed the setting under AI in the plueprint, but i guess that’s not all, since it won’t work. Anyone having an idea?