When the rich resources option is on, Factorio spits out an error while loading:
"Failed to load mods: wormmus-config/data.lua:7:
wormmus-config/util/loaders/default.lua:3:
wormmus-config/prototypes/extension/map-generation/resource-spawning-parameters.lua:5:
attempt to index field 'autoplace' (a nil value)."
Using Factorio 0.15.13
All of Bob's, all of Angel's, all of AAI, Creative mode, Omnimatter+wood, RSO, plus a lot of other ones but those are all that I can imagine have anything to do with map generation.
It's probably to do with RSO, beings it changes the entire generation scheme. I will have a fix sometime in the near future. Thank you for your report.
1.4.5 works for me now, but I tested a separate install of Factorio and 1.4.4 worked fine if RSO was the only other mod, so RSO alone didn't cause the issue.
Now it's producing the same error when trying to run without RSO.
EDIT: Bob's plates + ores + rich resources = error
Bob's plates + ores + RSO + rich resources = no error