I know it’s not driver related. I’m being facetious.
Keiran confirms Framework have reproduced the issue, but of course he stopped responding.
If you couldn’t reproduce it, how did you supposedly write BIOS updates that fixed it? (they didn’t). As @mahe says, you really must be putting minimal effort in to not notice it. I’d really suggest aligning your story with the rest of the staff because it smacks of dishonesty when the message is different each time the staff is asked.
The attitude of framework regarding this issue seems to be in extremely bad faith. “Contact support” isn’t a remedy, they will tell me to go and buy a new board.
We’re here to remake consumer electronics to respect people and the planet. Unlike most products, ours are open for you to repair, customize, upgrade, and own at the deepest level.
I don’t feel respected, nor do I have the ability to fix a computer that you didn’t build right.