I think "horribly, horribly wrong" is a bit of an exaggeration, but randomone is correct that there is a bug in Angel's Refining that only triggers when Angel's Smelting is not present.

In the \prototypes\recipes\refining-output.lua subfolder of Angel's Refining, the line
energy_required = 7,
in ...

I don't know if this is your mod, bob's immediates, or the game itself, but something during recipe loading is going horribly, horribly wrong.
0.7.25 - Not marathon - Default settings everywhere - Untouched mod files

0.002 2017-08-12 12:46:29; Factorio 0.15.33 (build 30852, win64, steam)
0.002 ...

Are the saphirite/Stiratite crushed ore straight to furnace recipes supposed to have such short crafting times? It feels weird sustaining a midgame factory's iron plate line off of 5 steel furnaces, and upgrading to the saphirite/jivolite sorter recipe actually killed my throughput for a bit until ...

Are the saphirite/Stiratite crushed ore straight to furnace recipes supposed to have such short crafting times? It feels weird sustaining a midgame factory's iron plate line off of 5 steel furnaces, and upgrading to the saphirite/jivolite sorter recipe actually killed my throughput for a bit until I ...