I got a problem with my linear blend after changing my format.
After I changed the format of the sequence I also scaled the video up so the main part is in the middle.
Now when I add a blend, the blend doesn't run evenly. The blends starts at 100% and than slowly goes to 0%. Before in the old format everything worked fine, but now the blend makes weird jumps. I can explain it in more detail if this is not enough.