Versions:

• Minecraft Forge:forge-1.12.2-14.23.3.2673-installer-win
• Geolosys:Geolosys-1.12.2-1.8.10c
• JourneyMap (optional):journeymap-1.12.2-5.6.0b2

What happens:

The geolosys_ores.json config file looked fine on first inspection, but when i went to make changes, I noticed that all of the size+chance+blacklist sections were one out of phase with the rest of the sections. I deleted the file and respawned it again and same result.

Logs (if necessary):

geolosys_ores.zip

(Totally misunderstood the bug report originally)

So, I don't see the problem with the attached JSON file - care to clarify??

Maybe I misunderstood the config ? Is each section meant to look like this:
"coalSize": 64,
"coalChance": 8,
"coalDimBlacklist": [
-1,
1
],
"coalMinY": 8,
"coalMaxY": 78,

In that order ? If so, maybe I misread it. I was seeing it as:
"coalMinY": 8,
"coalMaxY": 78,
"cinnabarSize": 40,
"cinnabarChance": 6,
"cinnabarDimBlacklist": [
-1,
1
],
and thinking that the coal and the cinnabar were mixed up. Looking at it again, I think I was just mistaken. Probably the hayfever I've been having :( messes with your ability to think logically.