I was in the nether and there was fire, so I broke the netherack under the fire and the fire was still there floating invisibly, It still burnt things though. and when I place the block back the fire comes back.

Im on Nintendo switch version 1.17.hotfix and the basic summary is when you break the block under fire in th nether the fire just goes invisible but still works as fire. also im sorry that I don't have a screen shot I just don't know how to get pics from my switch to the computer.