BTest problem

Is there any known problems with BTest, I am trying ti tests on a device ,

When I do in send, it seems to work properly
When I do in receive, it shows running, but shows 0 bytes
When I do in both, then it works for only couple of seconds and then says “no such test”
BTest.JPG

I can confirm this behaviour.
I am not knowledgeable enough to know if this is the expected behaviour, but it looks to me it is not.