Rather unfortunately, that oftentimes happens with the obfuscated assemblies. Guaranteeing complete recovery in all cases there is impossible. Hence, we are focused on fixing JustDecompile's bugs on unobfuscated code. That means our future releases will show a smaller number of errors when decompiling your assembly there but I doubt it will get to the point where the decompiled result could be compiled again.
All the best,
the Telerik team