It is probably too late for the tracker because it’s a hardware issue, but I have designed a rectifier circuit for TRS MIDI so you can use A or B cables on your device and it does not care. it is used on various Michigan Synth Works devices and modules, but is free for anyone to use. the BOM cost is just 2x BAT54 double diodes.
I suppose i should put it on my github! (edit, here it is) GitHub - jakplugg/PSI_MIDI: Either way 3.5mm TRS MIDI for your device.
The funny thing is i have been trying to use MIDI clock with my tracker and it was not doing anything. I’m so used to 3.5mm MIDI just working that I completely forgot about it until i saw this post.