I got i bug when i try to draw

Hello ,soo I started this animation and all was clean but after 2/3 days all the lines are a little connected ,
this guy have same bug

i could not add video becouse im new member but i got a imgur link

https://imgur.com/a/iBzCQZd

i tryed this file on another pc and it worked fine and it looked normal , soo my bender have problems, i reinstaled and i dont know what to do, thanks.