Question problems with button interactions with SteamVR plugin

I'm new with Unity and VR and I want to make a tutorial for my little VR game I made.
The player needs to cycle thru the screens with a back and next button. These buttons work perfectly in the simulator on screen (not with controllers and headset).
When I test it with the headset, the buttons bug out. Click events don't always register and it does click-actions that I didn't assign (example: it skips a few screens and shows a wrong screen).

I have other canvases with buttons in the scene, these work perfectly in VR.

Here is an example of 1 screen:



Hierarchy of 1 tutorial section with the different panels.


All the components in the button element. I'm using the interactable and UI element script from SteamVR. The Click-events in the UI element are normally correct (because they work without VR)


What am I doing wrong?