Fullscreen and trade agreement whenever I open the game

Hello,

I recently re-downloaded the 3.3.5 client with new models and I've been having an issue every time I open it. I normally play in windowed mode, but every time I open the game, it opens in fullscreen and also makes me go through the trade agreement screens like its the first time I've played the game. I never had this problem before redownloading

In addition, when I switch from fullscreen to windowed, there is a freezeframe that wont go away of what my screen looked like right before I switched from fullscreen to windowed. Here's an imgur link with an image of it happening: https://imgur.com/a/w2RoNuO.
Has anyone had a problem similar to this or know how to fix it?