(VR) UI buttons become unresponsive when pressing a button on the same canvas.

I am currently making a simple VR game where I have a simple menu at the start where the player can either start the game or check the instructions how to play. The instruction button works by deactivating the title text object and activating the instruction text object. The start button remains visible and is supposed to remain active.

My problem is that when i press the rules button both buttons become unresponsive, not reacting to being highlighted or clicked on.

I tested deactivating the part of the start button script that deactivates the start menu to see if both buttons would cause this problem and clicking the start button did not do so. I also tried deactivating the instructions button upon clicking it, but this did not help. This is the script that activates on clicking the instructions button:

public void Rules () { Title.SetActive(false); Instructions.SetActive(true); RuleBtn.SetActive(false); }

The script itself seems to work fine, so I have no idea where the problem is.