Unable to compile dependency

[Macarse]

Environment information

• brownie Version: 1.11.12 / 3fad0bd (locally)
• ganache-cli Version: N/A
• solc Version: 0.6.12
• Python Version: 3.8.6
• OS: osx

What was wrong?

I am trying to add a dependency to another project and I am getting:

WARNING: Unable to compile Macarse/GenericKeep3rV2@0.0.1 due to a FileNotFoundError - you may still be able to import sources from the package, but will be unable to load the package directly.

Dependency is https://github.com/Macarse/GenericKeep3rV2/releases/tag/0.0.1

Please include information like:
I run brownie locally to find out more.
I added a print(str(e)) to the warning and the apparent file missing is: interfaces/IKeep3rV1.sol

I kept looking at the brownie code and found the exception happening at:
changed_sources = {i: self._sources.get(i) for i in changed_paths} in the _compile_interfaces method.
I tried shuffling the changed_sources array and all of them seem to be failing.

No idea what the change_sources is for.
Any idea what can be wrong?

[Macarse]

Some additional info:
Copy-pasting from the GenericKeep3rV2 contracts and interfaces content into the new project works fine.

[iamdefinitelyahuman]

Not sure what this is, but i'll investigate.

[Macarse]

Thanks a lot!