You definitely can't use the same MIDIYoke port for both input and output. If you do, that's why you get a feedback loop error message. I would look at all the applications you use it with (obviously, if you are using a virtual MIDI cable, then there must be at least two applications) and make sure that "out is set to in" and vice versa. In other words, if you use port 1 for BIAB output, then use port 1 for the input where you are receiving the data. If you use port 2 for BIAB input, then use port 2 for output from the device sending the data.

That's the first place I would look, and make sure you set everything correctly.

I personally use LoopBE (and purchased it, because the registered version gives you more than one port. LoopBE works with both 32-bit and 64-bit applications, whereas MIDIYoke is 32-bit only. with LoopBE, for example, you can open BIAB and a 64-bit stand-alone Virtual Instrument and send the MIDI data from BIAB to that virtual instrument.

John

Laptop-HP Omen I7 Win11Pro 32GB 8TB SSD
Desktop-ASUS-I7 Win10Pro 32GB 11TB SATA

BB2026/UMC204HD&404HD/Casios/Cakewalk/Reaper/Studio One/Notion/Dorico/Noteworthy/NI/Halion/IK

http://www.sus4chord.com (under rehosting and construction)