couple of minor issues:
you can get stuck in the small embedded wall torches with (that look like oil pots not the bigger wooden stick torches), like on e1m5 in the secret whole with the life seed and zombie, after the short water section at the far end of the level where you loop back. you get stuck by autocrouching into the wall when you walk into or near the wall at the location of the torches/ lights, and you cant get out without cheating or otherwise reloading a save.
https://imgur.com/zre5WLu like this

Relative rotation of textures or decals or doodads/ world sprite objects, is bugged when the trigger for the object they are attached to is retriggered before the object itself has finished its full motion, but the decals or sprites etc have their angle changed while in the wrong location, like on e1m2 if you spam the first button to rotate the train to get access to the door, then the corpses and the train wheels decals will rotate incorectly to their location, like they rotate at the angle they are supposed to be at the location they are supposed to be at for the sequence of that button press, but because you essentially canceled or skipped 'movement' by pressing the button rapidly, then the train hasnt reached the location its supposed/ expected to be at for the angle the decals/ textures are facing and the corpse locations on the ground appear to move around the platform to be at the 'end location' before the platform has actually rotated for them to be there.
https://imgur.com/a/uIVpCrK like these


problems of hitscan enemies vs projectiles colliding with terrain/ models (unless its fixed in the beta and i havnt tested it enough)

also i want to say im aware that theres many hundreds if not thousands of bugs issues and features that have been fixed and implemented so far, and even better its still being actively worked on at a great rate to improve this product and seemingly genuinly make it the best commercial solution, instead of just releasing the least possible effort and then making the money without investing any more into it. so kudos to those involved for that
want to say i love this release, its reignited my love for old build/ id era games and without it i dont think id ever have known about the whole sourceport scene for every id / build and quake engine game, which in itself is just as if not even more priceless than reliving the nostalgia of blood, and the experience actually being better than i remember it! but even better now i konw about sourceports and scratch built engines and etc, now i can have fun replaying all those great games on modern hardware with modern conveniences and etc which.. just wouldnt be possible if Jim Sterling hadnt mentioned that this existed off-hand in a video.. so thank you to the developers and publisher for making this possible for those latter reasons alone
I dont know the exact problem or how to fix it, but from that name it seems like an intel graphics driver issue, which i think ive seen other people having issues with. if your using onboard graphics try reinstalling your graphics driver, or otherwise if you have a seperate graphics card, try explicitly disabling your intel graphics adapter, where its likely conflicting with your main graphics display adapter. there are probably a handful of different ways to go about fixing this but your best bet is searching for something like 'intel graphics crashing issue' and 'blood' , 'kex' , 'build' 'multi monitor' etc, if there isnt already threads on like steam forums of people having the same issue