If they lit up at all they weren’t backwards, nor was the power header (or they both were!). Sounds like too much current. Check the current limiting resistors, are they the right value?
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Apparently I was too tired to be building last night. Managed to grab 6.8Ohm instead of 6.8k
Which…would explain a thing or two. Debating if I’m too tired to fix it tonight or not now 
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Hey, me again working on more multiples 
Schem:
https://drive.google.com/file/d/1JDCMtQ_uU_wHGJ7aeqeCA5BitpY5BnXe/view
The idea is to have a module to handle my beatstep’s 3.5mm cv outputs and convert to Kosmo (Either all the drums 1:1 or different combinations of multiples for the velocity/gate and one converted pitch per beatstep channel). Using the normaled pins I can achieve that no problem, been done and described by a lot of people already.
The issue is when I start thinking about other possible routing setups I may use at some point and about the behavior of the routing going the other way, 1/4 to 3.5. I can come up with scenarios in the current setup that might be bad. Specifically if you have a 1/4 incoming signal and a 3.5 incoming signal in the same block.
Is there some fanciness with diodes I can do to protect myself? Or Should I just make it one-way with 8 diodes horizontally from 3.5 to 1/4. This isn’t the best as Ideally it would work both ways and in a variety of scenarios of outputs and inputs
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You could add switches.
Each pair of 1/4 to 3.5 jacks can be isolated to convert your trigger outs to 1/4in.
And you use a common buss to turn them into multiples.
Nice looking design btw.
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Hmmm 
that’s a good idea. Got me thinking. So you mean like a couple (or as many as I want) of “interrupt” switches between in 2 and 3 and one for between 6 and 7 on the normaled lines. The only problem is you could still accidentally mis patch something if the switches aren’t in the right place before patching live signals. but I’ve done this so many times and haven’t broke anything.
Would give you a lot of options both ways like if I want to send Kosmo signals to euro later on
Sorry I meant as many as you want,
I would do all of them, so you can rearrange the mults as you create your patch.
1/sw/2/sw/3/sw/4
5/sw/6/sw/7/sw/8
When using mults there will always be the possibility of patching wrong, I think it’s up to the user to know what they are doing. If you want protection you may need to go for an active circuit.
It also adds a lot more functionality.
Like the way Steevio combines gate patterns through switched mults, This could make it possible.
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