Visual Studio for Mac can't debug DLL code. Debug works as expected on non-DLL scripts.
Visual Studio can debug DLLs on Windows as expected.

Steps to reproduce:
1. Open user's attached project (132701.zip) and also extract MyDll3.zip somewhere in computer
2. Unity Preferences > External tools > External Script Editor > Visual Studio
3. Open Aasets/Test.cs
4. In VS: right click on "case_944496-132701" in Solution tab > Add > Add Existing project > navigate to MyDll3/MyDll3/MyDll.csproject
5. right click on "MyDll3" in Solution tab > Options > Output > Output pat > Set to case_944496-132701/Assets folder
6. Add a breakpoint in MyClass.cs line 13
7. Attach to Unity and Play, enter Play mode in Unity

Expected behaviour: debugger stops at the breakpoint.
Actual behaviour: debugger doesn't reach the breakpoint and doesn't stop.