Any IC I fabricate gets scrambled upon world reload, and requires all of them to be broken and replaced back down to work. (Note I have only tested in creative where inventory is unlimited and I am placing back down a new IC, haven't tried to see if in survival a broken IC will place back down and work or still be scrambled). I am on newest version of forge on MC 1.12.2, no other mods installed except for the required prerequisites and Integration, Fabrication, and Lights, compat, and worldedit.

Same for me.
The output shows a 1 after loading, although it should be 0. When I turn the input on and off, the output will work properly again.
But for the quite large number of ICs in my project, that's not a solution.

This issue has been preset for a long time. I initially reported it exactly one year ago for the 1.10.2 version #1245

This issue has been preset for a long time. I initially reported it exactly one year ago for the 1.10.2 version #1245

Ah, I looked too to try and find the issue before posting it but apparently I failed :)

Same thing here, every time i log on singleplayer every IC get scrubled and i need to brake and replace all of them.

This is incredibly disappointing. Really puts a halt on everything I wanted to do, with no clear workaround.

1b4e790 claims to fix this. Any idea if this just hasn't been pushed to curseforge yet? Building from source might be a solution.

Edit: Nope. That change does not fix the issue. Broken in latest git master.