Hey Lowkey,
you could check your controller for two reported connectivity issues:
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There can be connection problems with the breakout board adapter not reaching the contacts inside D-Sub connector on Onefinity Controller due to too long jackscrews on the D-Sub connector
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More recently there was a problem reported with the D-Sub connector soldered into Onefinity Controller Mainboard, problem could only be resolved by resoldering the solder joints on D-Sub connector pins on Onefinity Controller Mainboard
.