This article's web page actually has the essential note:
> NOTE: If your finished knot comes out crooked (eg. loops pointing heel-to-toe), it's probably because you tie your Starting Knot the opposite way to mine. This will result in an un-balanced knot, which sits crooked and comes undone more easily. See my Granny Knot page for more information.
Back when I still used to browse Imgur, there was a post illustrating how to identify and fix this easy to make mistake. It turns out that I was starting with the lace left-over-right as opposed to right-over-left (or vice-versa, not sure off-hand).
This quite literally changed my life, just a small muscle memory tweak and now my laces easily stay tied the whole day with a regular knot which is also super easy to release as well.
[0]: https://www.fieggen.com/shoelace/standardknot.htm
Edit:
I see he has a page dedicated to this mistake here: https://www.fieggen.com/shoelace/grannyknot.htm
[0] e.g. https://www.coachweb.com/gear/running-gear/heel-lock-lacing-...
Ditched the granny knot for the Ian's Secure Knot (https://www.fieggen.com/shoelace/secureknot.htm), and have been using that ever since for every pair of laced shoes I own.
But the double knot still sometimes comes untied somehow so I've never been entirely happy with it. Maybe if I take the effort to overcome my muscle memory and learn Ian's knot, it will quell the PTSD from being victimized at a young age and I can find inner peace.
I just tried to do the old fashioned knot, it might be the first time I've tied it in two decades.
I'm curious about the physics involved to cause such an obvious and singular failure.
Been tying my shoelaces like this ever since.
Added benefit: adults are impressed when they see my kids tie their laces.
https://youtu.be/8DBhTXM_Br4?t=1711 (Veritasium)
Funny thing is, if you don't know how to tie it, you probably just notice how it looks when it's done (almost exactly like the granny bowtie) so you (understandably) assume it's just a different method to arrive at the same result, like how bunny-ears and rabbit-goes-around-the-tree do. Of course it's not the same result at all.