Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1070 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.86
Broken: version: 2.82 (sub 5), branch: fluid-mantaflow, commit date: 2019-12-16 14:05, hash: rBed32db06c124
Short description of error
[Smoke & Fire emitter seems to only emit smoke after a second emitter (smoke only) is added.
Here's the same Sim without & with the second emitter enabled-
Exact steps for others to reproduce the error
[Bake the attached without the 'ParticleEmit' object enabled and you should see fire from the 'Emitter' object, bake again with the 'ParticleEmit' object enabled and the fire disappears.
[Based on the default startup or an attached .blend file (as simple as possible)]