Once you understand and have played with your karma for a while, you will witness and understand more and more about it until you know only two things for sure which is that karma is never wrong and 100% reliable.
That said, the human habit of blaming personal experience on others or random chance and "circumstance" or even oneself is thousands of years old.
This "glitch" is not a glitch. It's an "installed" habit of "forgetting" that allows for the creation of the human drama that makes karma stand out, once you know what you're looking for. That which makes it visible, recognizable and available for exploration and play, in and of itself.
Knowing the perfection, immutability and reliability of karma - PLUS the forgetting - is where the fun is!! Watching your own karma turn things around?
Getting caught up in a hurricane of drama? Followed by the calming effects and goosebumps that come with the remembrance of it?!?!
Watching karma turn on a dime? Watching as things rearrange themselves to accommodate a new presence of well-being in the drama of a situation? Witnessing the parting of seas and the creation of amazing - and often humorous - pathways by which the byproducts of forgetting can move away and results of rememberiance move in?!?
The discovery of your ability to control the speed and depths at which you allow your new knowing to wash through your being. Eliminating pride and self-righteousness and assumptions and beliefs and creating experiences of things you've never even imagined experiencing! Things you can't even conceive, let alone imagine - or believe possible!
And the unending parade of newness?!?! Newness tailored to your enjoyment of your personal interests! Watching those interests evolve, as the erroneous old beliefs and "knowings" are eliminated, one by one - no matter how far they go, how deep they might be or which direction they may turn!?
The experience of that which has always been! The experience of realizing and recognizing the only thing in existence that doesn't require anything else to exist! "The" law!
The law - as in the law that governs existence itself!
The only thing that could have possibly pre-existed existence, itself!!
That "thing", the very BEING of which is in NO way dependent on the existence of existence of any kind!!
And the freedom! The untouchable, immutable freedom of all freedoms...and man's tiny, erroneous ideas about it - like the ideas of it being granted by others or the idea that others can mess with it? Holy moly!