Well spotted! A great buy for anyone into the variations. I have just checked back and you are correct - Irish and Scottish shields switched across.
I don't go looking for that sort of thing, so probably miss some bargains. I am content with a decent example of each date.
TBH, I think many of the issues with this coin are in the planchet and are pre-strike, and surfaces such as the fields are quite nice actually. Not here to defend the price and also that they frequently seem a bit more than simply "subjective" in their grading.
This listing made me chuckle for a couole of reasons; the price and description:
https://www.ebay.co.uk/itm/204851971097?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=SCKi-ihOT4K&sssrc=4429486&ssuid=skmjbKlTSK-&var=&widget_ver=artemis&media=COPY