Hi,

I wrote about this issue in a comment of a different issue, but I was not sure you found it, so here it is again:

When an island biome is made to spawn in a custom biome with ReplaceToBiomeName, the server crashes. The problem only occurs when using forge.

The version of TC used is build #19. The version of forge is 10.12.1.1060 (Minecraft 1.7.2). The issue did not occur when using an older version of TC.

The following crash report is produced:
http://pastebin.com/rTjnzWMX

Here is a configuration with one custom biome and one edited default biome that has the mentioned problems:
WorldConfig.ini
http://pastebin.com/RidauEWf
ForestMod.ini
http://pastebin.com/10Ykwuez

The IsleInBiome line in ForestHills.bc was changed to read:
IsleInBiome: Forest, ForestMod

In short, to reproduce:

• Install forge 10.12.1.1060
• Install TC
• Use the mentioned WorldConfig.ini and ForestMode.ini
• Modify the IsleInBiome line in ForestHills.bc
• Server should now crash

If I've missed some important detail or if you need more information, let me know.

KPW

Noted, thanks. I hope to have some time soon to look at it.

The ForestMod biome instance got its name overwritten by the Forest biome (it was 'inheriting' the name), which caused IsleInBiome to fail finding it.