Epic Games played themselves out by adding the new moving emote, Conga. Apparently, when using Conga, players can walk on the Volcano’s lava in Fortnite without taking any damage. They will be 100% immune to it. This has been first showcased on Reddit by a user who has tried this on multiple occasions, thus made a video claim about it.
You can take a look at the glitch below:
This will probably be addressed with a fix as it allows players to gain some advantage, especially in event mode if the circle plays out there. It will allow players to walk on lava without taking damage.