R8000 Chainring on a 105 5800 crank

Sorry I’ve edited my OP and it probably caused confusion

The exact same speed/size/pattern 9100 36/52 has been swapped for the identical set up bar name R8000 (indoors only, not tightened or ridden).

I wouldn’t even try swapping the 4 bolt 9100 chain rings for an older 5bolt 6800 crank set chain rings. I have as it simply wouldn’t fit👍