Closed Unassigned: ThrowCatchUnwinder in SassAndScss transformer [58]

I am using the SassAndScss 1.8.3 to render my styles, using MVC 4:

@Styles.Render("~/css/style")

It is using IronRuby 1.1.3 as a reference.

When I start my site, I get a lot of these errors:

A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in IronRuby.Libraries.dll
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in IronRuby.Libraries.dll
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in IronRuby.Libraries.dll
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.
A first chance exception of type 'IronRuby.Builtins.KernelOps.ThrowCatchUnwinder' occurred in Unknown Module.

This causes the load time to increase a lot. I don't have the .pdb's for IronRuby to debug to see what is going on.

Hoping someone can help to fix/debug this with me?