I have several python addin's and they are pretty simple. For example, the user clicks a point on the map and it gets buffered. The other addin's aren't much more complex than that. They work great for several uses, and then they DON'T! Aggravating. If I delete the addin from ArcMap, restart ArcMap, and reinstall the addin it's back to working again.
Has anyone else had issues like this?