I am also seeing this problem where "Use same device for future launches" doesn't seem to work.
Here's the work-around:
Choose
Run ->
Run Configurations, and go to the
Target tab. If "
Manual" is selected, the "Use same device for future launches" checkbox will have no effect, so change it to
Automatic. When it's set to Automatic, you won't get reprompted. I'm really not sure what the expected behavior is supposed to be between these two options, but this is how I've found that they work.
I've added this info to the
bug.
Thanks.