There is a fire bug where there is a white bar on the top spot of the fire

there is a white bar on the top spot of my fire

What I expected to happen was...:
the fire would look what it should look like

What actually happened was...:
but the fire had a white bar bug on the top spot of it

Steps to Reproduce:
1. spawn a fire
2. there will be a random color bar on the top spot of the fire
3. done