View location of viewport is changed unexpectedly

Hello,

I am setting the view location of my viewport to a certain value and in the debugger, I see that the position updates. When I put a breakpoint at the tick override in my viewport client, it shows the updated location for the first time. After the first time, it gets set to some other value that I did not specify anywhere else. I am wondering what would cause the viewport location to change outside of my code.

Thank you.