Mu 4u Intellijel case had a bit of a funny turn last night. I switched it on and nothing would function - LEDs on modules would light up but stay static, so the VCOs weren’t oscillating, etc. I took everything out, reconnected everything one by one and tested the power each time I added one. Now it’s fine, but it’s a little concerning. What might cause that? The only thing that was different than before was the layout of the modules, but presumably that shouldn’t make a difference.
Is it something to worry about?