When you start Bandwith Test tool
- it starts in UDP receive direction by default
- it updates the RX number on the bottom TX / RX Legend
BUT...
graph is clearly drawn with BLUE color... (blue is clearly presented as TX color)
(when you change to send -> it correctly updates TX bumbers BUT now it draws in green -> which is RX => the colors in graph are inconsistent you get the point)
HOWEVER
when you choose SEND direction first -> in that case it updatex TX numbers and draws graph in correct color...
It seams that graph is drawn with bliue color first inconsistent with the direction setting, and it only "swaps" the color when the direction is changed
In short: the color/graph information presented is inconsistent with the choosen direction.