Hi,

The mod seems to break pyindustry 3.0.14

pypostprocessing/lib/data-stage.lua:175: attempt to index local 'p' (a number value)
stack traceback:
pypostprocessing/lib/data-stage.lua:175: in function 'standardize_product'
pypostprocessing/lib/metas/recipe.lua:70: in function <pypostprocessing/lib/metas/recipe.lua:57>
(...tail calls...)
pyindustry/prototypes/updates/base-updates.lua:30: in main chunk
[C]: in function 'require'
pyindustry/data-updates.lua:23: in main chunk

pypostprocessing error wasn't helpful but I fixed the problem when fixing an issue with wube's quality mod (which had a much more helpful error message). The tl;dr is drone-engine-unit didn't have a well-formed results from the data stage until it was fixed in the data-final-fixes stage. It should be fixed in all version post 0.5.1.