Hi,
If you load your mod onto save that already has robot research enabled, you have to run /c commands to enable the recipe as the mod is missing Migrations.
Here is an example of my migration that enables a recipe if a force already has researched that technology:
https://github.com/AlienXAXS/AXMatter/blob/master/migrations/aix_matter_0.1.2.lua
You can use this to add a new migration to this mod, if u wish!
The /c commands ran to fix this (for those that might need it is):
/c game.player.force.recipes["robot-recall-chest"].enabled = true
/c game.player.force.recipes["robot-redistribute-chest"].enabled = true
