I have a similar issue on a headless server. The save file works when I download it and load it as a save locally, but my headless server won't start with the same file due to an I/O error. I've even gone to the (minimal) effort of re-saving the file from my local copy to make sure the .zip was pure ...

Might be able to repurpose the logistic requests/ maximum items UI for this.

As a percentage (so the settings survive removing armour or exoskeletons), what is the minimum speed and the maximum speed you want to go?

Perhaps this range is tied not to the player or the exoskeletons, but rather to ...