The bug

Fire is not visible on the following entities which have the tag HasVisualFire set to 1b:

• End crystals
• Falling blocks
• Glow item frames / item frames
• Leash knots
• Minecarts (regular or with chest / furnace / command block / spawner)
• Netherite items
• Paintings
• Primed TNT
• Shulker bullets
• Wither skulls
• Display entities
• Interaction entities

(It also does not apply to area effect clouds, lightning bolts and markers, but that is certainly intended.)

To reproduce

For one of the listed entities, use the command

/summon <entity name> ~ ~ ~ {HasVisualFire:1b}

or summon one of the listed entities beforehand and execute the command

/data merge entity <entity UUID> {HasVisualFire:1b}

The entity will not be displayed as on fire.

For the netherite items, type

/summon item ~2 ~ ~ {Item:{id:"minecraft:netherite_hoe",Count:1b},HasVisualFire:1b}

and compare it to another item, such as a carrot, which will visibly display as on fire:

/summon item ~2 ~ ~ {Item:{id:"minecraft:carrot",Count:1b},HasVisualFire:1b}

You can verify that the tag is set to 1b and it is not visually showing the fire using

/data get entity <entity UUID> HasVisualFire

Expected result

The entities would show fire due to the fact they have visual fire.