Not burning blue in soul fire

In the soul fire you burn orange and not blue.

Reproduce

1. Turn on your computer
2. Start the minecraft launcher
3. Log in
4. Select the newest version
5. Move your mouse to the play button
6. Press the left mouse button
7. Wait for the game to start
8. Move your mouse to the singleplayer button
9. Press the left mouse button
10. Move your mouse to the world you want to play
11. Press the left mouse buton
12. Press the left mouse button quickly again
13. Wait for your world to load
14. Press E to open the creative inventory
15. Search for the soul sand
16. Move your mouse to the soul sand
17. Press the left mouse button
18. Move your mouse to an empty inventory slot
19. Press the left mouse button
20. Search for the fire charge
21. Move your mouse to the fire charge
22. Press the left mouse button
23. Move your mouse to an empty inventory slot
24. Press the left mouse button
25. Close your inventory by pressing ESC
26. Select the slot with the soul sand
27. Right click to place it
28. Select the fire charge
29. Right click the soul sand for the fire
30. Look at the soul sand
31. Start pressing W
32. Press Space
33. Stop pressing W
34. Press F5

Expcted results: Burning blue
Observed results: Burning orange like normal fire