Hi,
Could you please elaborate on this fix? Sometimes my ArcMap add-in breakpoints are recognised, but most of the time Visual Studio just says "This breakpoint will not currently be hit. The source code is different from the original version."
I have tried manually deleting and re-adding the add-in but it no longer seems to make a difference. Can you provide the steps you went through? I think part of the problem is that the add-in is copied over to its new location in user-dir\ArcGIS\add-ins etc. when added to the application.
Any help much appreciated.