Problems with setting op-amp amplifier gain
This is a fast (50 MHz, 2000V/µs) opamp. These tend to have a strong dislike for high parasitics like L in the supply or C in the feedback. On a breadboard, it might oscillate or do weird stuff, but since you post no traces, there is no way to tell.

You need a real PCB. If you want to prototype it, solder it dead-bug on a ground plane, like so:



Source

Now, it is also a current feedback opamp. Since you don't mention it, I will suppose you know the differences with a voltage feedback opamp...

Also... come on, look at that yellow wire, it's about five miles long, and it's the GROUND of the test signal coax! And you're testing that at 1MHz?