Installing a smart dimmer switch into 3 gang box
I think the kind of tester you are using is not accurate enough.

Here's a good way to find out which wire is HOT and which is LOAD on the middle switch:


turn off the circuit breaker
Turn off the left switch
Disconnect both wires from the middle switch and cap each one with a wire nut
Turn on the circuit breaker
Carefully remove the wire nut from one of the disconnected wires and touch it to the hot terminal on the left switch - if the living room recessed lights come on, that was the LOAD wire - mark it with a bit of tape
If the living room recessed lights do not come on, touch the wire to the load terminal on the left switch - if the eyeball light comes on then that was the HOT wire
Replace the protective wire nut before continuing
If no lights come on, try carefully repeating the test with the other disconnected wire
remember to turn off the circuit breaker again before continuing


These tests depend on your switches being wired correctly in the first place. If both wires from the center switch behave exactly alike, or if your testing trips the circuit breaker, your wiring may have errors that will require much more analysis.