This number has 36 bits (coincidentally 36th line as well 😉). It doesn't fit in int and thus is truncated (silently, thanks to unchecked) to 0x200006. Since none of the other status codes in this file actually overflows, I assume it is a mistake. Likely there should've been one less zero inside 200006. As a side effect, this is the only error code that is actually positive.

I'm not sure if it is doable to fix that, I mean such change is not backwards compatible: even though the enum is internal, those codes actually leak outside (I've seen it in console, that's where I started to search for it). But this actually makes debugging a bit hard, since the reported error code is not present in the code.