Weber Doing Well

[Mildog]

Could be the wrong fly? And the lure represents something to eat that triggers them. It might not be a fly/lure question but which fly and which lure? I have had instances where I couldn’t buy a fish, then change fly and success. The exact thing on lures, many times I was convinced they weren’t biting and or they were not there and was about to quit, then changed lure same spot and game on, fish on! Experimenting can make the difference.
But like Tube dude said we will never figure it out all of the time, the fun is trying and sometimes we do!