Torrent Completed BUT NOT completed FULLY

OK so I download a torrent and Tixati says is completed download 100% then I move it to another location and when i play the video it is jerking....

I did a recheck of the torrent and I find that mostly a small portion at the end did NOT complete....

is this common to torrent clients???

DO I need to recheck ALL downloads??? or just the ones removed to USB sticks???

Hi, the same thing has been happening to me for my dowloaded videos. Sometimes (randomly) my videos start to get stuck at some point. I usually go and redownload the video.
This started to happen maybe 2-3 months ago.