This bug has been presented in the Java Edition.
How To Reproduce:-
Step 1:- Have a lava bucket.
Step 2:- place the lava and let it flow.
Step 3:- go to the end where is lava stops flowing.
Step 4:- be in air in a height of a block and change the view to third person front.
Step 5:- now walk on lava in the air.
The player gets on fire.
That should not happen.
Hoping this information is helpful to fix the bug.