Frames flipping in camera view?

I have around 160 frames and just a few days ago I replayed the whole thing and I noticed that around 4 of the frames were flipping? I tried to fix it in the drawing view, but even if it was fixed there it still flipped on camera view.
Plus it will shift around, and if I move one, several other will flip too. Pleas help :c

It depends on how/why the images were flipped. Was it done using menu-Element-Transform-Flip [horizontal or Vertical] or was it done using the “Offset” for the X or Y axis in the peg or element by adding a negative value?
If the latter, you can select the element or peg at these frame positions and examining the “Properties” window.