steps

• create an library and publish it
• update the library and use publishLocal

problem

So you have 2 of the same snapshot version but with different code in your .ivy2 cache
On in .ivy2/cache and one in .ivye/local, where the one in .ivy/local is the latest snapshot version.

SBT resolved the dependency to the .ivy2/cache (older) version instead of the new .ivy2/local version.

expectation

That the .ivy2/local preceeds the .ivy2/cache

notes

We sometimes publish our snapshot version to share between environments, but this doesn't mean development is one. We still want/ need to update the exact same version number locally before remotely.