This didn’t always happen on the 80 but has started happening since a month or so ago, it makes it pretty fustrating to work because once in a while ( enough to make it hard to reproduce on demand ) it will randomly drop the ctrl modifier, meaning Ctrl - s will instead have me typing s, same thing with ctrl c, v etc.
Have to tried swapping the switches?
Replace the ctrl with the escape or similar.
yeah, i actually swapped over to my 60 with the same ctrl switch on that and didn’t have any issues, then swapped back to the 80 with those same switches and the issues persisted.
A lead of the socket may have separated from the circuit board. Can you possibly check? You’d have to disassemble the relevant keyboard half.
I haven’t gotten the chance to check but this is probably the reason. As i press down ctrl, it oscillates between on and off, sometimes continuing to do so when held down. How would i fix this?
Can you show some pics?
If the pad has lifted off the PCB, then it’s likely gonna need a little surgery…
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The soldering socket of the Ctrl key appears correct, but it’d be better to take a photo of the socket terminals from an angle not perpendicular to the board and closer.
That bottom, right square pad looks like it might be slightly deformed…
If you VERY GENTLY lift up on that socket, does it look like there’s any separation? Don’t use any force, of course. You don’t want to damage it while checking… 
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