Discovered while testing MC-268496
If you summon an entity with HasVisualFire nbt tag set to 1, while the game is frozen (/tick freeze) that visual fire will not be shown until you run /tick step 1t
Steps to reproduce:
Run the following commands in order
/tick freeze /summon minecraft:cow ^ ^ ^1 {NoAI:1, HasVisualFire:1}
Notice that fire animation isn't shown
Run
/tick step 1t
Fire animation is shown
Linked issues
discovered while testing 1
Comments 1

Confirmed.