The problem persists only with your child theme. Please activate parent Legenda theme and you’ll see there is no such issue. So you need check all the changes you’ve made in the child theme. Sorry, but we can’t know what exactly you modified there.
Ok, there does seem to be a priority change on Legenda though, don’t suppose you know the priority number for the tabs, it was 10 but thats stopped working, and we just wanted to move the tabs to under the price and not below the image, but the remove action is not working