So this is an acceptable “workaround” for me until the mod is updated. So I removed the “Cien No EA Lashes For Males V3.package” from my mods folder and … well, my male Sims seams to have their kind of ugly eyelashes back BUT … my female sims don’t (and their lashes looked way more uglier than the male ones in my opinion!). Female ones never had a “broken/empty” face. I tested around a bit and noticed, it affected only my male mermaids. In case your mermaids haven’t a face this is caused by The No EA eyeleashes mod from which needs an update for The Sims 4 “Island Living” expansion pack.