Bukkit

Q: What steps will reproduce the problem ?
A: smelting

Q: Do you have an error log of what happened ?
A: No

Q: What is the expected output ? What do you see instead ?
A: smelt use flag.

Q: What version of RecipeManager and CraftBukkit are you using ?
A: latest versions

Q: Did you use "rmreload" or "reload" commands in that server session ? If so, specify which.
A: rmreload

- Provide additional information if appliable.

about month ago. I use this recipe

smelt
clay_brick
= clay_brick
@ingredientcondition clay_brick | name &rUnSmelt Copper Ore
@name &rCopper Ingot

it work normaly. but now it didn't work anymore

so. i try to use anothor option like

smelt
@ingredientcondition clay_brick | name &rUnSmelt Copper Ore
clay_brick
= clay_brick
@name &rCopper Ingot

no. it still not work.
so i wonder? if I do like this

smelt
clay_brick
= quartz
@name &rCopper Ingot

and the quartz don't have name "Copper Ingot"
so I thing flag stop working for smelt.

but the important is
"It was work"

more imformation. I try to use other recipemanager version and it work on v2.3.2.

also i forgot to tell you. I use spigot1.8.8.

@pIaybabe: Go

I found the solution to your issue :D

Use the item number instead of the minecraft name for the item. Try pasting this and it should work, as it did for me. I am on Spigot1.9, so there is that discrepancy to keep in mind.

smelt
336:0
= 336:0
@ingredientcondition 336:0 | name &rUnsmelt Copper Ore
@name &rCopper Ingot

I've found using the number alleviates a bunch of issues since they rarely change, and the names are more often to.

@natorai_shido: Go

nope, still not work

I can solve this problem now! by set fix-mod-results to true.

but it false by default.

hope you change default to true :D to make sure no one got same problem like me.

ok, new thing. fix-mod-results dosen't work. but now I got this error. (take from log) this error show up when take Item from furnace.

[16:36:47] [Server thread/FATAL]: Error executing task java.util.concurrent.ExecutionException: java.lang.ClassCastException: net.minecraft.server.v1_9_R1.ItemStack cannot be cast to java.lang.Float at java.util.concurrent.FutureTask.report(Unknown Source) [?:1.8.0_101] at java.util.concurrent.FutureTask.get(Unknown Source) [?:1.8.0_101] at net.minecraft.server.v1_9_R1.SystemUtils.a(SourceFile:46) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:721) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at java.lang.Thread.run(Unknown Source) [?:1.8.0_101] Caused by: java.lang.ClassCastException: net.minecraft.server.v1_9_R1.ItemStack cannot be cast to java.lang.Float at net.minecraft.server.v1_9_R1.RecipesFurnace.b(RecipesFurnace.java:135) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.SlotFurnaceResult.c(SlotFurnaceResult.java:44) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.SlotFurnaceResult.a(SlotFurnaceResult.java:31) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.Container.a(Container.java:307) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.PlayerConnection.a(PlayerConnection.java:1857) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.PacketPlayInWindowClick.a(SourceFile:33) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.PacketPlayInWindowClick.a(SourceFile:10) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at net.minecraft.server.v1_9_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_101] at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_101] at net.minecraft.server.v1_9_R1.SystemUtils.a(SourceFile:45) [spigot-1.9.2.jar:git-Spigot-5a40365-b103841] ... 5 more

Im not sure about this one below but hope it useful.

[14:58:50] [Spigot Watchdog Thread/ERROR]: Current Thread: Timer-1 [14:58:50] [Spigot Watchdog Thread/ERROR]: PID: 31 | Suspended: false | Native: false | State: TIMED_WAITING [14:58:50] [Spigot Watchdog Thread/ERROR]: Stack: [14:58:50] [Spigot Watchdog Thread/ERROR]: java.lang.Object.wait(Native Method) [14:58:50] [Spigot Watchdog Thread/ERROR]: java.util.TimerThread.mainLoop(Unknown Source) [14:58:50] [Spigot Watchdog Thread/ERROR]: java.util.TimerThread.run(Unknown Source) [14:58:50] [Spigot Watchdog Thread/ERROR]:

Pretty sure this issue was fixed a while ago, but if for some reason it wasn't, please create a new ticket with as much info as you can to help replicate it.