Is it possible that you rotated the cap 1 wire clockwise or CClockwise?...Inverted a pair through Dyslexia? It has happened to me and pretty much anybody who does it enough times. I have gone so far as to neatly tag and label and number plug wires incorrectly.
Have another set of eyes inspect and validate all ist in ordinung. You can try disconnecting the spark leads while the engine is running to see if it makes a difference. (MR. Safety says Don't electrocute yourself or others)
OK, IF you are absolutely SURE that the Zundfolge ist rechtig...Is it possible that the (new) plug wires themselves are bad? Try putting everything back exactly as it was before. (yes I am suggesting that you put the old wires on to test the new wires) If problem solved, replace 1 wire at a time to determine the problem child.
Could you have disturbed a finicky Green wire at either end?