I was playing with a discord friend in Star Wars fallen orden and wanted to parry a droid projectile in a jump, but it accidentally flew into the air. I was interested in this moment and I started testing the bug (I called it the "blocklock bug"). The bottom line is that you need to lock the enemy and jump at the same time as the block. It is important that you press onetap, not to the side. When you jump, you need to wait quite a bit so that Cal doesn't reach the peak of the jump and start spamming in a block and in any direction (but I still haven't figured out if sliding to the side affects anything). Then you can simply take your character away in the air. I also noticed that the droids in a certain area on Zeffo just lose sight of you.

In the speedrunning community, we call it a Target Lock Jump aka (TLJ). It's when u target an enemy, jump and block as Cal is reaching the peak of his jump. Also work with slow ability as well. Been known for years. Surprised u found it in a casual gameplay.