I have just re-installed FSX after having a year or so off and have run into a few issues like this when attempting to get things properly sorted.

I installed EZCA and had all kinds of view problems so that could be an issue. I un-installed, cleaned the registry, re-installed and it was still wonky.
So then I went into views and reset everything back to default using the defaults radio button.

That worked for me.

I have so many setup issues that I will start a new thread. I have to collate all my questions first. There's too many different options to remember them all.