Hi.
I was playing with bob's mods, angels, pyanodon, yuoki, msp 30+ and madclown mods together and spotted a deadlock involving pcb1 (ingame: printed circuit substrate 1)
Basicaly all electric early game machines were requiring the pcb1 (ingame: printed circuit substrate 1) instead of the electronic-circuit (ingame: Circuit 1). this meant that i needed the pcb1 item to build machines that i needed to unlock this recipe.
I was able to determine that this happens because of the mod pyhightech/data-updates.lua line 1 collum 219 where the bob's basic-circuit-board gets replaced with the pcb1, causing this problem. Changing from pcb1 to electronic-circuit fixed the problem and allows further progression.
If you need a list of all the mods i can provide it. I hope you understood the problem and that the fix i found is the correct you.
Thank you.