Minecraft does not capture mouse.

When I am playing Minecraft Bedrock windowed, the game doesnt capture the mouse. I, unfortunately, cannot screenshot the cursor. I play with Minecraft on one monitor and Discord on the other. If I move the mouse too far to the right, or down, and I click, it grabs focus of Discord, or the Taskbar, when I meant to place a block or attack. I do not know how to reproduce. Minecraft doesnt seem to care where the mouse is, it still moves the camera.