How should I configure ConfuserEx to support optional libraries without jeopardising security?

[I-Knight-I]

My project is setup as follows:

• Main.exe - WinForms application with core functionality
• Extended.dll - Optional library which extends functionality in Main.exe (if present)

In my .crproject, both Main.exe and Extended.dll are included.
Nearly all protections are enabled on Main.exe -- including typescramble

If I attempt to use the extended functionality provided by the optional library, the program raises an exception System.MissingMethodException: Method not found: '?????????????????????????????????????????[]

This can be fixed if I disable typescramble but severely jeopardises security. I know I can use Expression Functions to disable it for certain items but would ideally like to keep everything enabled. It also seems like only namespace('Namespace') works for me, nothing else.

How can I configure ConfuserEx such that Extended.dll has no issue calling methods/classes in Main.exe when typescramble is enabled? Part of me believes it should be possible by linking them together at compile-time/obfuscation-time and simply separating them after but that doesn't seem to work.

Cheers in advanced.