I just entered a method call and found a funny behavior. The method has three string and one int parameter. If i came to the int parameter intellisense show the following:
When i start entering a number the popup changes like this:
This occurs only if i enter numbers (even if i enter a number for the fourth parameter, which is a string). This doesn't seem to be a cache problem as the behavior remains after deleting R# cache. Unfortunately i can't reproduce it in a small console app.