Macros placed on bar from Mega Macro are not the macro that was selected.

I can't reproduce this. Please provide more info. What is "jewe..." macro? is it from the new UI or the old one? Is it something you wrote or is it created by an addon?

It's a macro I wrote for Jewelcrafting. It was imported from the old UI.

Jewelcrafting macro contains...

What should be there is the Hearthstone macro...

Try recreating the macros and see if that fixes it I guess. Also try /reload. This is the first I've heard of this issue and I can't reproduce it unfortunately.

Recreating macros did work.