Oh no! I was just at an RV shop getting some sealant work done and while were looking at the door he asked if the window had ever slid down (like what you show). The RV guy mentioned that if the window had slid, the frame probably has "tabs" that hold the window in place, and that based on your pictures, your bottom tabs may have broke. He said that if that was the case, you may be able to take out the window + frame, flip over the frame (putting the top tabs on the bottom?), put the window back in and reseal.
*Note: never tried it, never seen it, have no idea if it would work, just overheard in a passing conversation. Try at your own risk. I would call the factory and ask what they recommend. They're very helpful!