You flashers should work with the key turned fully back.
Before I trained myself to turn the key fully then back one click I tried to pull up leaving my one of flashers on, the flash gets your attention far better than just a light, it failed for me so I got into the habit of turning it fully then back.
It has worked for me without fail for many years.
Some of the 19 rides in my shed
2014 V2, Snoopy
2009 Wee, Pumbaa the pig
WR450F, The Blue Postie Bike
YZ250N smoker with rego, Stinky.
Yamaha MT09 (FZ09), The Scud missile.
Club Lead not Club Med.
He with the most toys wins.
Out of my depth in a puddle.
Live life on the edge you will see more that way.
Ridding a motorcycle keeps things in balance.
At the end of each trail and at the end of each day history is made.