Problem with jack: CR-V jumps off the rack!

Hello, I recently changed tyres with my CR-V, so I mounted the car with the original jack enough, wheel down (without violence) and then it happened: the jack slipped away and went off with the car down. Luckily I mounted the pedals on my SUV, so that the jack could narrow down there and did not land on the brake disc. Has any of you ever happened something similar? My CR-V was of course on a level road and the jack was also in the right place and correctly positioned. I didn’t change tyres for the first time. In the future I will use my shunting truck lifter, but what happens if a plate happens on the way? I will then call the ADAC and deposit a different jack in the car than the original one for safety!