Video Track 1 Broken

I had just finished editing my video project and i saved it. I then closed shotcut to play games and export the video later when my computer was not in use but when i came back to the project file i found that all of the cuts were in the right places and so were the clips in tracks 2,3 and 4 but track 1 was showing clips that i had cut out of the project. The entirety of Track 1 was replaced by clips that had been cut out. I don’t know how to fix this please help.