I can see the issue. Line 125 and other lines near the bottom get cut off when the terminal is open. This is a viewport bug. The terminal takes space at the bottom, but the diff view doesn’t recalculate the visible area correctly, so the lower lines become hidden.
Temporary workarounds:
Close the terminal when viewing diffs in Git Graph
Try resizing the terminal panel by dragging the divider up or down. Sometimes this triggers a layout recalculation
I’ll pass this to the team to fix. This is clearly a rendering bug.