Invisible fire in the air

I was playing Minecraft on my Nintendo Switch, I was in the bother blowing up beds to get ancient debris. I ran out of beds so I ran down my mineshaft and started mining some nether quarts when I suddenly caught on fire. Nothing out of the ordinary until I moved away from any fire and was still burning so I started placing blocks when a fire appeared on a block. When I broke the block and placed it again it came back, this meant that the fire was disappearing but it could still hurt you. Please fix this, I dont want anyone else to die from an invisible fire.

The videos show what happens