Window frame lock repair
Vanna, had the same issue. Here was my fix. Clean the rubber seal with soap and dry. Place seal on edge of glass and spray it and frame lock with 50/50 solution of water/alcohol (acts as a lubricant and will dry) and fit frame lock over seal and begin, from the bottom, tapping it into place. I used an 8" piece of wood on the frame and with a modest hammer tapped the frame lock into place--this is tedious and probably took 15 minutes of tapping. Take your time. Once seated it should be a durable repair. A cause of this problem can be that if the screen is not fully seated a brisk closure of the window may cause the screen frame to contact the window frame lock and knock it loose. Rats.