For the Align engine category, @VyPr does only one engine but others do two. Could there be a retime for that.

That shouldn't be necessary since you can catch up with @VyPr by using an older version.

If you do it, how do you plan to retime it?

This is because of a glitch in a previous version of the game. Due to the ending of the task being trivial (it's different between completing the first engine and second engine), it would be unfair to retime this way, as every run would stop timing in slightly different points. We do allow reverting game versions, which is what is required to obtain the record for this category, as well as a few others.