Maybe you reached the 2gb limit at worldgen.
I also have good and bad news:
Good: I fixed the errorlogs from "simple pets" and "archeology" OFF. (that moogie reported)
Good: Found a bug and fixed the Armory, which was disabled. Ups...
Good: Removed golem button, since they are no tradegoods anymore.
Very Good: Made a absolutely new system for castes. Called: Guilds. You can built a guildhall, and buy permit/letters of recommendation. This allows your dwarves to join a guild, the smiths, the crafters, the Legion, or a noble house. This way they get all the skill-learn-bonus that the castes have and select yourself who gets what. Works beautifully.
Very, very bad: I reached the limit for custom reactions. The game freezes automatically as soon as I reach a certain number. I managed to make some space by removing redundant magma related reactions, but I only have two options now:
1. No new reactions. DAMN
2. Delete old reactions. DAMN as well.
I already made a list of things I think of as unimportant. Glass beds, dismanteling of wooden furniture, the stone grinder being able to choose a specific type of stone (I could leave only 2 reactions in: grind economic/grind non-economic) and several batch reactions, that only do the same as the normal reactions.
Same goes for custom reactions for every material. I could trim it down to one material, or make it accept any material and have the results with: get material from reaction, but that would lead to a lot of micromanagement... this would be inacceptable for me.
Here is what I mean with different mats, this is just the javelin ammo:
[PERMITTED_REACTION:MAKE_JAVELINS_ONE]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE]
[PERMITTED_REACTION:MAKE_JAVELINS_ONE_COPPER]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO_COPPER]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_COPPER]
[PERMITTED_REACTION:MAKE_JAVELINS_ONE_IRON]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO_IRON]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_IRON]
[PERMITTED_REACTION:MAKE_JAVELINS_ONE_STEEL]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO_STEEL]
[PERMITTED_REACTION:MAKE_JAVELINS_ONE_MITHRIL]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO_MITHRIL]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_STEEL]
[PERMITTED_REACTION:MAKE_JAVELINS_ONE_DAMASCUS]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO_DAMASCUS]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_DAMASCUS]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_LEAD]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_SILVER]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_TUNGSTEN]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_IOVIUM]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_GOLD]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_PLATINUM]
[PERMITTED_REACTION:MAKE_JAVELINS_ONE_BRONZE]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO_BRONZE]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_BRONZE]
[PERMITTED_REACTION:MAKE_JAVELINS_ONE_BISMUTH_BRONZE]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO_BISMUTH_BRONZE]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_BISMUTH_BRONZE]
[PERMITTED_REACTION:MAKE_JAVELINS_THREE_BISMUTH]
[PERMITTED_REACTION:MAKE_JAVELINS_ONE_ADAMANTINE]
[PERMITTED_REACTION:MAKE_JAVELINS_TWO_ADAMANTINE]