Hey. Yesterday such errors began to pour in, but sorting works.
Yesterday was an Oxide update

Failed to call hook 'OnTick' on plugin 'FurnaceSplitter v2.2.7' (InvalidCastException: Null object cannot be converted to a value type.)
at System.Convert.ChangeType (System.Object value, System.Type conversionType, System.IFormatProvider provider) [0x00029] in <437ba245d8404784b9fbab9b439ac908>:0
at System.Convert.ChangeType (System.Object value, System.Type conversionType) [0x0000c] in <437ba245d8404784b9fbab9b439ac908>:0
at Oxide.Core.Plugins.Plugin.Call[T] (System.String hook, System.Object[] args) [0x00008] in <cf88a28c7fb44d36890d85a78331cc9d>:0
at Oxide.Plugins.FurnaceSplitter.CreateUi (BasePlayer player, BaseOven oven, Oxide.Plugins.FurnaceSplitter+OvenInfo ovenInfo) [0x000a8] in <d8af09fc8eea467684ecee843c34088b>:0
at Oxide.Plugins.FurnaceSplitter+<OnTick>c__AnonStorey0.<>m__0 (BasePlayer plr) [0x00016] in <d8af09fc8eea467684ecee843c34088b>:0
at System.Collections.Generic.List`1[T].ForEach (System.Action`1[T] action) [0x00024] in <437ba245d8404784b9fbab9b439ac908>:0
at Oxide.Plugins.FurnaceSplitter.OnTick () [0x0006a] in <d8af09fc8eea467684ecee843c34088b>:0
at Oxide.Plugins.FurnaceSplitter.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00240] in <d8af09fc8eea467684ecee843c34088b>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <d09a1f46ca2f4432811bcfe45ad13c7b>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <cf88a28c7fb44d36890d85a78331cc9d>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <cf88a28c7fb44d36890d85a78331cc9d>:0

Any ideas on how to fix this? It spams console when someone is using a furnace.

Failed to call hook 'OnTick' on plugin 'FurnaceSplitter v2.2.7' (InvalidCastException: Null object cannot be converted to a value type.)
  at System.Convert.ChangeType (System.Object value, System.Type conversionType, System.IFormatProvider provider) [0x00029] in <437ba245d8404784b9fbab9b439ac908>:0
  at System.Convert.ChangeType (System.Object value, System.Type conversionType) [0x0000c] in <437ba245d8404784b9fbab9b439ac908>:0
  at Oxide.Core.Plugins.Plugin.Call[T] (System.String hook, System.Object[] args) [0x00008] in <cf88a28c7fb44d36890d85a78331cc9d>:0
  at Oxide.Plugins.FurnaceSplitter.CreateUi (BasePlayer player, BaseOven oven, Oxide.Plugins.FurnaceSplitter+OvenInfo ovenInfo) [0x000a8] in <d042c6603ad744c6ab11179f2477fabe>:0
  at Oxide.Plugins.FurnaceSplitter+<OnTick>cAnonStorey0.<>m0 (BasePlayer plr) [0x00016] in <d042c6603ad744c6ab11179f2477fabe>:0
  at System.Collections.Generic.List1[T].ForEach (System.Action1[T] action) [0x00024] in <437ba245d8404784b9fbab9b439ac908>:0
at Oxide.Plugins.FurnaceSplitter.OnTick () [0x0006a] in <d042c6603ad744c6ab11179f2477fabe>:0
at Oxide.Plugins.FurnaceSplitter.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00240] in <d042c6603ad744c6ab11179f2477fabe>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <d09a1f46ca2f4432811bcfe45ad13c7b>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <cf88a28c7fb44d36890d85a78331cc9d>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <cf88a28c7fb44d36890d85a78331cc9d>:0

Hey.
In the console such error takes off:

Failed to call hook 'OnTick' on plugin 'FurnaceSplitter v2.2.7' (InvalidCastException: Null object cannot be converted to a value type.)
  at System.Convert.ChangeType (System.Object value, System.Type conversionType, System.IFormatProvider provider) [0x00029] in <fb001e01371b4adca20013e0ac763896>:0
  at System.Convert.ChangeType (System.Object value, System.Type conversionType) [0x0000c] in <fb001e01371b4adca20013e0ac763896>:0
  at Oxide.Core.Plugins.Plugin.Call[T] (System.String hook, System.Object[] args) [0x00008] in <ec05e0208c9149bba43236ca58fea105>:0
  at Oxide.Plugins.FurnaceSplitter.CreateUi (BasePlayer player, BaseOven oven, Oxide.Plugins.FurnaceSplitter+OvenInfo ovenInfo) [0x000a8] in <39eb97f90bc74cedb108f7350debab14>:0
  at Oxide.Plugins.FurnaceSplitter+<OnTick>c__AnonStorey0.<>m__0 (BasePlayer plr) [0x00016] in <39eb97f90bc74cedb108f7350debab14>:0
  at System.Collections.Generic.List`1[T].ForEach (System.Action`1[T] action) [0x00024] in <fb001e01371b4adca20013e0ac763896>:0
  at Oxide.Plugins.FurnaceSplitter.OnTick () [0x0006a] in <39eb97f90bc74cedb108f7350debab14>:0
  at Oxide.Plugins.FurnaceSplitter.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00240] in <39eb97f90bc74cedb108f7350debab14>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <80b90e8213db44b29ec2d4111764172c>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ec05e0208c9149bba43236ca58fea105>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ec05e0208c9149bba43236ca58fea105>:0

Failed to call hook 'OnTick' on plugin 'FurnaceSplitter v2.2.7' (InvalidCastException: Null object cannot be converted to a value type.) at System.Convert.ChangeType (System.Object value, System.Type conversionType, System.IFormatProvider provider) [0x00029] in :0 at System.Convert.ChangeType (System.Object value, System.Type conversionType) [0x0000c] in :0 at Oxide.Core.Plugins.Plugin.Call[T] (System.String hook, System.Object[] args) [0x00008] in :0 at Oxide.Plugins.FurnaceSplitter.CreateUi (BasePlayer player, BaseOven oven, Oxide.Plugins.FurnaceSplitter+OvenInfo ovenInfo) [0x000a8] in :0 at Oxide.Plugins.FurnaceSplitter+c__AnonStorey0.<>m__0 (BasePlayer plr) [0x00016] in :0 at System.Collections.Generic.List`1[T].ForEach (System.Action`1[T] action) [0x00024] in :0 at Oxide.Plugins.FurnaceSplitter.OnTick () [0x0006a] in :0 at Oxide.Plugins.FurnaceSplitter.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00240] in :0 at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <80b90e8213db44b29ec2d4111764172c>:0 at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in :0 at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in :0​

Failed to call hook 'OnTick' on plugin 'FurnaceSplitter v2.2.7' (InvalidCastException: Null object cannot be converted to a value type.) at System.Convert.ChangeType (System.Object value, System.Type conversionType, System.IFormatProvider provider) [0x00029] in <fb001e01371b4adca20013e0ac763896>:0 at System.Convert.ChangeType (System.Object value, System.Type conversionType) [0x0000c] in <fb001e01371b4adca20013e0ac763896>:0 at Oxide.Core.Plugins.Plugin.Call[T] (System.String hook, System.Object[] args) [0x00008] in <ec05e0208c9149bba43236ca58fea105>:0 at Oxide.Plugins.FurnaceSplitter.CreateUi (BasePlayer player, BaseOven oven, Oxide.Plugins.FurnaceSplitter+OvenInfo ovenInfo) [0x000a8] in <ac505699c1ca4da3abf3c46f25411922>:0 at Oxide.Plugins.FurnaceSplitter+<OnTick>c__AnonStorey0.<>m__0 (BasePlayer plr) [0x00016] in <ac505699c1ca4da3abf3c46f25411922>:0 at System.Collections.Generic.List`1[T].ForEach (System.Action`1[T] action) [0x00024] in <fb001e01371b4adca20013e0ac763896>:0 at Oxide.Plugins.FurnaceSplitter.OnTick () [0x0006a] in <ac505699c1ca4da3abf3c46f25411922>:0 at Oxide.Plugins.FurnaceSplitter.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00240] in <ac505699c1ca4da3abf3c46f25411922>:0 at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <80b90e8213db44b29ec2d4111764172c>:0 at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ec05e0208c9149bba43236ca58fea105>:0 at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ec05e0208c9149bba43236ca58fea105>:0​

Plugin is working well however each time I open a furnace I get this error (see below)

I re-installed the plugins multiples time (deleted every configuration too) + server restart and I always seem to have this error.

I have small stacks (max 2000)

Do you have any idea what could be the problem? Thank you!

23:19 [Error] Failed to call hook 'OnTick' on plugin 'FurnaceSplitter v2.3.1' (InvalidCastException: Null object cannot be converted to a value type.)
  at System.Convert.ChangeType (System.Object value, System.Type conversionType, System.IFormatProvider provider) [0x00029] in <fb001e01371b4adca20013e0ac763896>:0
  at System.Convert.ChangeType (System.Object value, System.Type conversionType) [0x0000c] in <fb001e01371b4adca20013e0ac763896>:0
  at Oxide.Core.Plugins.Plugin.Call[T] (System.String hook, System.Object[] args) [0x00008] in <ec05e0208c9149bba43236ca58fea105>:0
  at Oxide.Plugins.FurnaceSplitter.CreateUi (BasePlayer player, BaseOven oven, Oxide.Plugins.FurnaceSplitter+OvenInfo ovenInfo) [0x000a8] in <018ea6fa6102479d9e53957339e06d4a>:0
  at Oxide.Plugins.FurnaceSplitter+<OnTick>c__AnonStorey0.<>m__0 (BasePlayer plr) [0x00016] in <018ea6fa6102479d9e53957339e06d4a>:0
  at System.Collections.Generic.List`1[T].ForEach (System.Action`1[T] action) [0x00024] in <fb001e01371b4adca20013e0ac763896>:0
  at Oxide.Plugins.FurnaceSplitter.OnTick () [0x0006a] in <018ea6fa6102479d9e53957339e06d4a>:0
  at Oxide.Plugins.FurnaceSplitter.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00240] in <018ea6fa6102479d9e53957339e06d4a>:0
  at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <80b90e8213db44b29ec2d4111764172c>:0
  at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <ec05e0208c9149bba43236ca58fea105>:0
  at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <ec05e0208c9149bba43236ca58fea105>:0

the problem continues. I'm following

I should start looking into this again. I might do so sometime in the next few days but no promises.

Anyway, for those having this issue, downgrade UIScaleManager to version 1 for now (assuming you have no other plugins that rely on it).

            float uiScale = UIScaleManager == null ? 1.0f : UIScaleManager.Call<float>("API_CheckPlayerUISize", player.UserIDString);

float uiScale = UIScaleManager?.Call<float>( "API_CheckPlayerUISize", player.UserIDString ) ?? 1.0f;​

Love your plugin, I've recently started implementing UIScaleManager in some of our home grown UI plugins so it was sad to see this become an issue. 

Thanks. 

I have this problem too. I'm following you. There was no such problem before UIScaleManager. I hope it gets better.