Infinity Logo Part 2 (Sketch)
Daniel Hollick

Thanks for your explanation!

You can bypass the Vector tool’s problem:
1. unite of the 2 rings: select the 2 rings and than layer -> path -> join;
2. delete the point you wouldn’t use through the edit tool.
Now you have the same result with no one of the problems you have if you are using the vector tool (fint the right position of the points, use the bezier curves etc).