Hello,
1/ Could you please, check your banners now ? If they are ok, notify us ! The fix will be included in next theme update too 🙂
2/ If you are talking about Products Grid elements below -> https://prnt.sc/D9FzfeMj9JBg they don’t inherit global theme options for products so Sale text is not percentage because such option is set in Theme Options. You may provide your idea as request here -> https://www.8theme.com/roadmap/.
Regards