Strange reflections from inside building mesh

I’m not exactly sure why this is happening, but my reflections are acting strangely. I am using the [community ocean project][1] but I’m not sure that’s causing the issue because it messes with reflections on other materials too. But this is the only mesh that seems to cause this issue.

You can see what happens when you fly through the window:

There is no geometry covering the window area, and the same happens in the doorway.

This picture above suggests it has something to do with SSR, but I tried turning that off and it didn’t seem to change anything. So I’m not sure if I did it properly?

The lamp reflected above is the one shown below:

Any help would be appreciated, thank you!