I’m stumped as well, after they updated the DNA, I lost all of my ‘Welshness’ despite having Welsh ancestors on my tree and it was replaced with ‘Scottish’ even though I don’t have any Scottish ancestors ( even though I’ve gone back a long long way) I now find that I have Scottish Ancestry on both Parents sides. On my Fathers side I can’t go back any further than Grt Grandfather on one side, so it’s plausible that his father was a Scotsman, but his is the tree with my Welsh Ancestors, but my Mums tree goes back to the 1700s so I’m surprised to say the least. My Scots DNA on both parents is around 24%.
Sadly my parents and my brother are no longer with us. So I don’t have anyone to compare it with.