Obviously reset the map means start all over, but does remap ruin the existing map and all the work that’s been already done to get it correct?

I want to remap just one room which I can’t get mapped or cleaned even though the vacuum knows it is there and even travels through it.
I don’t want to start over with an entirely new map.
It took 4 recharging sessions and a lot of effort removing chairs and decorative items to get a total map. I want to be able to occasionally clean the entire floor in the future and previously once mapped with items in place meant never cleaning those areas again.