I recently updated the Sonar Core and Flux Networks versions to 3.3.1 and 1.2.9, respectively, from the versions that were originally included in the Sky Factory 3 pack to fix issues with Flux Networks. I had crafted Reinforced Stone Fences before the update, but I just now noticed that the recipe for them seems to be missing. Looking at the logs, I see this:

[00:10:01] [Client thread/ERROR] [sonarcore]: ERROR ADDING SHAPED ORE RECIPE: 6xtile.ReinforcedStoneFence@0
[00:10:01] [Client thread/INFO] [STDERR]: [sonar.core.SonarCrafting:addShapedOre:84]: java.lang.NullPointerException
[00:10:01] [Client thread/INFO] [STDERR]: [sonar.core.SonarCrafting:addShapedOre:84]: at net.minecraft.item.crafting.CraftingManager.func_92103_a(SourceFile:1199)
[00:10:01] [Client thread/INFO] [STDERR]: [sonar.core.SonarCrafting:addShapedOre:84]: at net.minecraftforge.fml.common.registry.GameRegistry.addShapedRecipe(GameRegistry.java:230)
[00:10:01] [Client thread/INFO] [STDERR]: [sonar.core.SonarCrafting:addShapedOre:84]: at sonar.core.SonarCrafting.addShapedOre(SonarCrafting.java:81)
[00:10:01] [Client thread/INFO] [STDERR]: [sonar.core.SonarCrafting:addShapedOre:84]: at sonar.core.SonarCrafting.registerCraftingRecipes(SonarCrafting.java:32)
[00:10:01] [Client thread/INFO] [STDERR]: [sonar.core.SonarCrafting:addShapedOre:84]: at sonar.core.SonarCore.preInit(SonarCore.java:130)
...

Full sonarcore logs:
https://gist.github.com/sbrocket/c6d30838bfacf4d3265f0f066d9882bf

Minecraft version 1.10.2, Forge version 12.18.3.2477