Bake starting in odd places

As you can see in the image, the particle simulation is supposed to start at frame 1, and end at frame 150. The saved part of the bake behaves properly (all particles appear in mid-motion, already far away from where they spawned). However, before frame 93, no particles appear. It’s blank.
[ATTACH=CONFIG]496421[/ATTACH]
I even tried re-creating the particle system and restarting Blender, even using different versions of Blender. Nothing solved the issue.

What’s going on???

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