This is not a bug. Can the Hammer Core dependency be removed? This mod impacts performance and has poor compatibility.

Can you provide more information on what's going on with HammerLib? Versions, logs, anything that can help narrow down performance issues.

The dependency will not be removed.

I don't know why the compatibility error was automatically fixed. The problem is that Evolved Mekanism conflicts with HammerLib and extends the startup time by one minute.