Error loading mods
Failed to load mods: _ MushroomCloud /prototypes/ground_zero.lua:54: attempt to get length of local 'effect' (a nil value)
stack traceback
_ _MushroomCloud /prototypes/ground_zero.lua:54: in function 'remove_vanilla_flash_effect'
_ _MushroomCloud /prototypes/ground_zero.lua:265: in main chunk
[C]: in function 'require'
_ _MushroomCloud _/data-updates.lua:3: in main chunk

Would send you my mod list as well if I knew how.

Mods I have installed that are stated as optional dependencies:
"Rampant Arsenal"
"Schall Artillery"
"Schall Land Mine"

Possible incompatible mod(s)?:
"Schall Radioactive Waste"

Hope this is enough information, I'll keep looking for my crash-log to see if that could provide additional information.

Conflict with Schall Land Mine.
I see this trying to access target_effects, but isn't it supposed to be source_effects for land mines? (the lines just above 265 access source_effects)