This is my last effort to find the problem. None of this helped so I’ll use work arounds.
Type = Replay so I can move the fire.
TEST
I apended the scene from the production blend (fire not work) into a new blend (fire works). Two scenes in one blend. I’m not familiar with using more than one scene so I may be doing something wrong.
Deleted all the objects from the prod scene. I made a fire emitter and domain in the new scene and in the prod scene. Fire works in New not in Prod.
I looked for differences in the Scenes and Worlds (another World came in with the prod scene).
Difference 1
New scene has surface->use nodes active for World with Surface = background. Prod scene does not. I changed Prod to be like New. No effect.
Difference 2
New had a Volume section in World properties. Prod did not. That section appeared in Prod when I added the surface nodes in Difference 1. No effect.
Difference 3
Prod had custom properties on the scene while New did not. X’ed them off. No effect.
Here is the two scene test file.
TwoScenesFireTest.blend (943.6 KB)
WORK AROUNDS
Work Around 1
Append everything into a new default blend.
Work Around 2
Run the sim in a new default then play the disk cached fire in the old.